1
|
Kar S, Maharana PK, Punniyamurthy T, Trivedi V. Tandem (4 + 3)-Annulation of Aziridines: Stereoselective Access to Fused Azepinoindoles. Org Lett 2023. [PMID: 38051106 DOI: 10.1021/acs.orglett.3c03547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
A stereoselective tandem (4 + 3)-coupling of aziridines with 4-alkylidene indole malonates has been disclosed under Cu-catalysis involving a base-promoted annulation. The methodology serves as a potential approach toward the facile construction of fused azepinoindoles with good yields and diastereoselectivities. Late-stage natural product and drug modification as well as preliminary investigations for the enantioselective (4 + 3)-annulation are important practical features.
Collapse
Affiliation(s)
- Subhradeep Kar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Prabhat K Maharana
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | | | - Vishal Trivedi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| |
Collapse
|
2
|
Zhang Z, Sun Z, Song J, Guo H, Wang Y, Hu X. Construction of the A-B-C Ring of Simplicissin through an Oxidative Dearomatization/Iodination/[3+2] Annulation Cascade. Org Lett 2023. [PMID: 38018904 DOI: 10.1021/acs.orglett.3c03464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
As an attractive DMOA-derived spiromeroterpenoid, simplicissin shares a common A-B-C ring skeleton with other natural analogues. On the basis of the development of an oxidative dearomatization/iodination/[3+2] annulation cascade, a concise synthetic pathway to the A-B-C ring of simplicissin has been successfully established, and the substrate generality of the novel oxidative dearomatization/iodination/[3+2] annulation cascade has been checked.
Collapse
Affiliation(s)
- Ziwei Zhang
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi'an 710127, China
| | - Zezhong Sun
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi'an 710127, China
| | - Jianing Song
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi'an 710127, China
| | - Hao Guo
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi'an 710127, China
| | - Yunxia Wang
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi'an 710127, China
| | - Xiangdong Hu
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi'an 710127, China
| |
Collapse
|
3
|
Lu JB, Xu XQ, Ruan ZS, Liu K, Liang RX, Jia YX. Pd-Catalyzed Intramolecular Dearomative [4 + 2] Cycloaddition of Naphthalenes with Arylalkynes. Org Lett 2023; 25:8139-8144. [PMID: 37934112 DOI: 10.1021/acs.orglett.3c03240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
A Pd-catalyzed intramolecular dearomative [4 + 2] cycloaddition reaction of naphthalenes with arylalkynes is developed. The protocol provides a straightforward method to access a range of polycyclic dihydronaphthalenes containing two vicinal all-carbon stereocenters in moderate yields under mild conditions in an air atmosphere. The deuterium labeling experiment suggests a pathway involving electrophilic dearomatization followed by Friedel-Crafts cyclization. Several synthetic transformations of the product were conducted to demonstrate the utility of this reaction.
Collapse
Affiliation(s)
- Jin-Bo Lu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Xiao-Qiu Xu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Zi-Sheng Ruan
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Kai Liu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| |
Collapse
|
4
|
Zhu HT, Liang CM, Li TY, Li LY, Zhang RL, Wang JN, Qi RQ, Zhang JM, Yang RH, Yang YQ, Zhou AX, Jin X, Zhou NN. Dual Proton/Silver-Catalyzed Serial (5 + 2)-Cycloaddition and Nazarov Cyclization of ( E)-2-Arylidene-3-hydroxyindanones with Conjugated Eneynes: Synthesis of Indanone-Fused Benzo[ cd]azulenes. J Org Chem 2023; 88:3409-3423. [PMID: 36847758 DOI: 10.1021/acs.joc.2c02247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
A one-pot step-economic tandem process involving (5 + 2)-cycloaddition and Nazarov cyclization reactions has been reported for the facile synthesis of indanone-fused benzo[cd]azulenes from (E)-2-arylidene-3-hydroxyindanones and conjugated eneynes. This highly regio- and stereoselective bisannulation reaction is enabled by dual silver and Brønsted acid catalysis and opens up a new avenue for the construction of important bicyclo[5.3.0]decane skeletons.
Collapse
Affiliation(s)
- Hai-Tao Zhu
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Chun-Miao Liang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Ting-Yan Li
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Lin-Yan Li
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Rui-Ling Zhang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Jun-Na Wang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Rui-Qing Qi
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Jia-Min Zhang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Ruo-Han Yang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Yin-Qi Yang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - An-Xi Zhou
- Key Laboratory of Applied Organic Chemistry, Higher Institutions of Jiangxi Province, Shangrao Normal University, Shangrao 334000, China
| | - Xiaojie Jin
- Gansu University Key Laboratory for Molecular Medicine & Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Ni-Ni Zhou
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| |
Collapse
|
5
|
Li CL, Yang Y, Zhou Y, Duan ZC, Yu ZX. Strain-Release-Controlled [4 + 2 + 1] Reaction of Cyclopropyl-Capped Diene-ynes/Diene-enes and Carbon Monoxide Catalyzed by Rhodium. J Am Chem Soc 2023; 145:5496-5505. [PMID: 36812021 DOI: 10.1021/jacs.3c00134] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Achieving transition-metal-catalyzed reactions of diene-ynes/diene-enes and carbon monoxide (CO) to deliver [4 + 2 + 1] cycloadducts, rather than the kinetically favored [2 + 2 + 1] products, is challenging. Here, we report that this can be solved by adding a cyclopropyl (CP) cap to the diene moiety of the original substrates. The resulting CP-capped diene-ynes/diene-enes can react with CO under Rh catalysis to give [4 + 2 + 1] cycloadducts exclusively without forming [2 + 2 + 1] products. This reaction has a broad scope and can be used to synthesize useful 5/7 bicycles with a CP moiety. Of the same importance, the CP moiety in the [4 + 2 + 1] cycloadducts can act as an intermediate group for further transformations so that other challenging bicyclic 5/7 and tricyclic 5/7/5, 5/7/6, and 5/7/7 skeletons, some of which are widely found in natural products, can be accessed. The mechanism of this [4 + 2 + 1] reaction has been investigated by quantum chemical calculations, and the role of the CP group in avoiding the possible side [2 + 2 + 1] reaction has been identified, showing that the [4 + 2 + 1] is controlled by releasing the ring strain in the methylenecyclopropyl (MCP) group (about 7 kcal/mol) in the CP-capped dienes.
Collapse
Affiliation(s)
- Chen-Long Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Yusheng Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Yi Zhou
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhao-Chen Duan
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| |
Collapse
|
6
|
Zhong LP, Feng R, Wang JJ, Li CC. Asymmetric Total Synthesis of Twin Bufogargarizins A and B. J Am Chem Soc 2023; 145:2098-2103. [PMID: 36656917 DOI: 10.1021/jacs.2c13494] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The first and asymmetric total synthesis of bufogargarizins A and B, two unusual and highly oxygenated twin steroids with rearranged A/B rings, was achieved. The synthetically challenging [7-5-6-5] tetracyclic ring system of bufogargarizin A was efficiently constructed by the first intramolecular Ru-catalyzed [5 + 2] cycloaddition reaction of a vinyl ether cyclopropane-yne. Notably, the interesting [5-7-6-5] tetracyclic skeleton of bufogargarizin B was diastereoselectively reassembled by unique retro-aldol/transannular aldol cascade reactions from the [7-5-6-5] tetracyclic framework.
Collapse
Affiliation(s)
- Li-Ping Zhong
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Rui Feng
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing-Jing Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.,Shenzhen Bay Laboratory, Shenzhen 518132, China
| |
Collapse
|
7
|
He J, Yang L, Zhang X, Xu W, Wang H, Lang M, Wang J, Peng S. Stereodivergent Syntheses of N-heterocycles by Catalyst-Controlled Reaction of Imidazolidines with Allenes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Jieyin He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Liangliang Yang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Xue Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Wendi Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Haiyang Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, People’s Republic of China
| | - Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| |
Collapse
|
8
|
Sohail M, Bilal M, Maqbool T, Rasool N, Ammar M, Mahmood S, Malik A, Zubair M, Abbas Ashraf G. Iron-catalyzed synthesis of N-heterocycles via intermolecular and intramolecular cyclization reactions: A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
9
|
Yang Y, Tian ZY, Li CL, Yu ZX. Why [4 + 2 + 1] but Not [2 + 2 + 1]? Why Allenes? A Mechanistic Study of the Rhodium-Catalyzed [4 + 2 + 1] Cycloaddition of In Situ Generated Ene-Ene-Allenes and Carbon Monoxide. J Org Chem 2022; 87:10576-10591. [PMID: 35904504 DOI: 10.1021/acs.joc.2c00406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transition metal-catalyzed [4 + 2 + 1] cycloaddition of in situ generated ene/yne-ene-allenes (from ene/yne-ene propargyl esters) and carbon monoxide (CO) gives the [4 + 2 + 1] cycloadducts rather than [2 + 2 + 1] cycloadducts. Investigating the mechanism of this [4 + 2 + 1] reaction and understanding why the [2 + 2 + 1] reaction does not compete and the role of the allene moiety in the substrates are important. This is also helpful to guide the future design of new [4 + 2 + 1] cycloadditions. Reported here are the kinetic and computed studies of the [4 + 2 + 1] reactions of ene-ene propargyl esters and CO. A quantum chemical study (at the DLPNO-CCSD(T)//BMK level) revealed that the [4 + 2 + 1] reaction includes four key steps, which are 1,3-acyloxy migration (rate-determining step), oxidative cyclization, CO migratory insertion, and reductive elimination. The allene moiety in the substrates is critical for providing additional coordination to the rhodium center in the final step of the catalytic cycle, which in turn favors the reductive elimination transition state in the [4 + 2 + 1] rather than in the [2 + 2 + 1] pathway. The CO insertion step in the [4 + 2 + 1] reaction, which could occur through either the UP (favored here) or DOWN CO insertion pathway, has also been deeply scrutinized, and some guidance from this analysis has been provided to help the future design of new [4 + 2 + 1] reactions. Quantum chemical calculations have also been applied to explain why [4 + 2] and [4 + 1] cycloadditions do not happen and how trienes as side products for some substrates are generated.
Collapse
Affiliation(s)
- Yusheng Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zi-You Tian
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Chen-Long Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| |
Collapse
|
10
|
Calow ADJ, Dailler D, Bower JF. Carbonylative N-Heterocyclization via Nitrogen-Directed C-C Bond Activation of Nonactivated Cyclopropanes. J Am Chem Soc 2022; 144:11069-11074. [PMID: 35715228 PMCID: PMC9248011 DOI: 10.1021/jacs.2c02921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
![]()
Under Rh-catalyzed
conditions, secondary amines and anilines function
as directing groups to facilitate regioselective C–C bond activation
of nonactivated cyclopropanes. The resulting amino-stabilized rhodacycles
undergo carbonylative C–N bond formation en route to challenging
seven- and eight-membered lactams. The processes represent rare examples
where C–C bond oxidative addition of nonactivated cyclopropanes
is exploited in reaction design.
Collapse
Affiliation(s)
- Adam D J Calow
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - David Dailler
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - John F Bower
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| |
Collapse
|
11
|
Synthesis of Substituted Tropones and Advancement for the Construction of Structurally Significant Skeletons. ChemistrySelect 2022. [DOI: 10.1002/slct.202200440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
12
|
|
13
|
Harry NA, Ujwaldev SM. Recent advances in [5+2] cycloadditions. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220510152025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
The existence of a seven-membered cyclic core in several natural products and biomolecules vitalized the research on its synthesis. [5+2] cycloaddition has become a promising strategy for the construction of seven-membered ring systems by the formation of carbon-carbon bonds in a single step, with strong regioselectivity and stereoselectivity. This review mainly focuses on recent developments in the area of [5+2] cycloaddition since 2019. Total synthesis of natural products involving [5+2] cycloaddition as key step leading to heptacyclic core is also discussed. Synthesis of fused and bridged ring systems via the reactions involving inter and intramolecular [5+2] cycloadditions like oxidopyrylium-mediated [5+2] cycloadditions, [5+2] cycloadditions of vinyl cyclopropanes (VCPs), vinyl phenols, etc is explained in the review with the latest examples. This review provides a useful guide for researchers exploring this powerful strategy to create more elegant heptacycles in their future research.
Collapse
|
14
|
Zhang X, Xu J. Five-membered carbocycle construction in the synthesis of Daphniphyllum alkaloids: recent strategic and methodological advances. Org Chem Front 2022. [DOI: 10.1039/d2qo01410f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this review article, we summarize novel or non-standard strategies and methods for the five-membered carbocycle construction in recent Daphniphyllum alkaloid synthesis.
Collapse
Affiliation(s)
- Xiaofeng Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
| |
Collapse
|
15
|
Li XS, Kong X, Wang CT, Niu ZJ, Wei WX, Liu HC, Zhang Z, Li Y, Liang YM. Lewis-Acid-Catalyzed Tandem Cyclization by Ring Expansion of Tertiary Cycloalkanols with Propargyl Alcohols. Org Lett 2021; 23:9457-9462. [PMID: 34859669 DOI: 10.1021/acs.orglett.1c03621] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new method for the efficient synthesis of hexahydro-1H-fluorene and octahydrobenzo[a]azulene derivatives through a ring-expansion strategy is reported. With an appropriate combination of thulium(III) trifluoromethanesulfonate and 13X molecular sieves, a range of unsaturated polycyclic compounds were obtained in good yields. Mechanism studies reveal that the reaction is more likely to undergo Meyer-Schuster rearrangement, ring expansion, and Friedel-Crafts-type pathways, which provide a conceptually different strategy for the ring opening of tertiary cycloalkanols.
Collapse
Affiliation(s)
- Xue-Song Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiangtao Kong
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Cui-Tian Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhi-Jie Niu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Wan-Xu Wei
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation, Chinese University of Hong Kong, Shatin, Hong Kong 999077, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
16
|
Liu Z, Hu J, Ding H. Electrochemical ODI-[5+2] Cascade for the Syntheses of Diversely Functionalized Bicyclo[3.2.1]octane Frameworks. Org Lett 2021; 23:6745-6749. [PMID: 34402626 DOI: 10.1021/acs.orglett.1c02321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A metal- and hypervalent iodine reagent-free electrochemical oxidative dearomatization-induced [5+2] cycloaddition/pinacol rearrangement cascade reaction was described. The electrosynthetic method showed strong tolerance for vinylphenols, ethynylphenols, and allenylphenols, which thus enabled the rapid assembly of diversely functionalized bicyclo[3.2.1]octanes in 41-95% yields and up to >20:1 dr. This protocol could be scaled up to gram amounts and should find wide application in complex natural product synthesis.
Collapse
Affiliation(s)
- Zhaobo Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jialei Hu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hanfeng Ding
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
17
|
Suárez-Rodríguez T, Suárez-Sobrino ÁL, Ballesteros A. Gold(I)-Catalyzed [8+2]-Cycloaddition of 8-Aryl-8-azaheptafulvenes with Allenamides and Ynamides: Regioselective Synthesis of Dihydrocycloheptapyrrole Derivatives. Chemistry 2021; 27:7154-7159. [PMID: 33567146 DOI: 10.1002/chem.202005348] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Indexed: 01/01/2023]
Abstract
Gold(I)-catalyzed higher-order [8+2] cycloadditions of 8-aryl-8-azaheptafulvenes 1 with allenamides 2 and ynamides 3 were studied. 1,8-Dihydrocycloheptapyrroles 4 were achieved by a regioselective [8+2] cycloaddition of azaheptafulvenes 1 and allenamides 2 in the presence of (2,4-ditBuC6 H3 O)3 PAuNTf2 as catalyst. Besides, ynamides 3 and 8-aryl-8-azaheptafulvenes 1, undergo a regioselective [8+2] cycloaddition, to give 2-amido-1,4-dihydrocycloheptapyrroles 7 in the presence of JohnPhosAuNTf2 as catalyst. Both reactions take place with good yields and with a variety of substituents. A plausible mechanism hypothesis suggests a nucleophilic attack of the 8-azaheptafulvene to the gold activated electron rich allene or alkyne moieties of the allenamide and ynamide, respectively.
Collapse
Affiliation(s)
- Tatiana Suárez-Rodríguez
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| | - Ángel L Suárez-Sobrino
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| | - Alfredo Ballesteros
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| |
Collapse
|
18
|
Gao K, Hu J, Ding H. Tetracyclic Diterpenoid Synthesis Facilitated by ODI-Cascade Approaches to Bicyclo[3.2.1]octane Skeletons. Acc Chem Res 2021; 54:875-889. [PMID: 33508196 DOI: 10.1021/acs.accounts.0c00798] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tetracyclic diterpenoids (C20) mainly refer to the plant terpenoids bearing biogenetically related carbon skeletons derived from copalyl diphosphates (ent-CPP and syn-CPP). This large family contains over 1600 known members that can be categorized into 11 major structural types. Among them, more than three-quarters share a bridged bicyclo[3.2.1]octane subunit, which is also an important branching point in biosynthesis en route to the other types of bicyclic scaffolds, such as bicyclo[2.2.2]-, bicyclo[3.3.0]-, and tricyclo[3.2.1.0]octanes. Combined with the significance of its stereochemical importance in biological activity, the assembly of the bicyclo[3.2.1]octane skeletons is critical to the success of the whole synthesis blueprint toward tetracyclic diterpenoids. Although a number of inspiring methodologies have been disclosed, general approaches by the incorporation of innovative cascade reactions permitting access to diverse structural types of tetracyclic diterpenoids remain limited and in urgent demand.Because of the long-standing interest in the synthesis of bridged diterpenoids, we have recently developed two complementary types of oxidative dearomatization induced (ODI) cascade approaches to the rapid and efficient construction of bicyclo[3.2.1]octane skeletons. In this Account, we summarize our original synthesis design, methodology development, and the application of these two strategies in tetracyclic diterpenoid synthesis during the past few years in our laboratory.First, we detail our preliminary investigation of the ODI-[5 + 2] cycloaddition/pinacol rearrangement cascade reaction, which showed a wide scope of vinylphenol substrates and led to cyclopentane and cyclohexane-fused bicyclo[3.2.1]octanes in good yields with excellent dr values. Next, we describe the utilization of this ODI-[5 + 2] cascade reaction which resulted in the asymmetric total syntheses of four highly oxygenated ent-kauranoids. The strategy concerning accurate stereochemical control in the ODI-[5 + 2] cycloaddition was then successfully transplanted to the total syntheses of three stemaranoids, thus providing a straightforward and diastereoselective route to C9-ethano-bridged tetracyclic diterpenoids. To access more complex diterpenoid rhodomollanol A, we exploited two additional biomimetic rearrangements, namely, the retro-Dieckmann fragmentation/vinylogous Dieckmann cyclization cascade and the photo-Nazarov cyclization/intramolecular cycloetherification cascade. Taken together with the ODI-[5 + 2] cascade, the asymmetric total synthesis of the target molecule was realized, which shed light on the biogenetic pathway of the unprecedented rhodomollane-type carbon framework. Finally, we describe an ODI-Diels-Alder/Beckwith-Dowd cascade approach as a valuable supplement to the ODI-[5 + 2] cascade for the fabrication of cycloheptane-fused bicyclo[3.2.1]octane skeletons. Its versatility was also demonstrated by the total syntheses of two challenging grayanane diterpenoids. In view of the high functional-group compatibility and scalability, we anticipate that the two novel cascade approaches will find further use in the field of complex natural product synthesis.
Collapse
Affiliation(s)
- Kai Gao
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou 318000, China
| | - Jialei Hu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hanfeng Ding
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou 318000, China
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
19
|
Armengol‐Relats H, Mato M, Echavarren AM. Assembly of Complex 1,4‐Cycloheptadienes by (4+3) Cycloaddition of Rhodium(II) and Gold(I) Non‐Acceptor Carbenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Helena Armengol‐Relats
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| |
Collapse
|
20
|
Shao J, Li Z, Wang Y, Xiong Y, Hu X. Synthesis and Bioactivity of Tropone Derivatives as Potential Compounds against Human Gastric Cancer Cells Growth. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
21
|
Caillé J, Robiette R. Cycloaddition of cyclopropanes for the elaboration of medium-sized carbocycles. Org Biomol Chem 2021; 19:5702-5724. [PMID: 34114583 DOI: 10.1039/d1ob00838b] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The stereocontrolled formation of medium-sized carbocycles is a major goal in modern organic chemistry due to their widespread occurrence in natural products and pharmaceutically active ingredients. One approach consists in the use of cycloaddition reactions which notably results in high selectivities and atom-economy. To this end, cyclopropanes are ideal substrates since they can provide readily functionalized three- or five-carbon synthons. Herein we report advances made in cycloaddition reactions of cyclopropanes towards the synthesis of medium-sized carbocycles via transition metal catalysis or Lewis acid catalysis.
Collapse
Affiliation(s)
- Julien Caillé
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 box L4.01.02, 1348 Louvain-la-Neuve, Belgium. and Institut de Chimie et des Matériaux Paris Est (ICMPE), UMR-CNRS 7182, Université Paris Est Créteil (UPEC), 2 Rue Henri Dunant, 94320 Thiais, France.
| | - Raphaël Robiette
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 box L4.01.02, 1348 Louvain-la-Neuve, Belgium.
| |
Collapse
|
22
|
Gao Y, Song X, Yan RJ, Du W, Chen YC. Asymmetric β,γ′-regioselective [4 + 3] and [4 + 2] annulations of α-vinylenals via cascade iminium ion-dienamine catalysis. Org Biomol Chem 2021; 19:151-155. [PMID: 33112340 DOI: 10.1039/d0ob02068k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
α-Vinylenal substrates have been designed and applied in β,γ′-regioselective asymmetric [4 + 3] and [4 + 2] annulation reactions via cascade aminocatalysis.
Collapse
Affiliation(s)
- Yang Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Xue Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Ru-Jie Yan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| |
Collapse
|
23
|
Armengol-Relats H, Mato M, Echavarren AM. Assembly of Complex 1,4-Cycloheptadienes by (4+3) Cycloaddition of Rhodium(II) and Gold(I) Non-Acceptor Carbenes. Angew Chem Int Ed Engl 2020; 60:1916-1922. [PMID: 33078893 PMCID: PMC7894532 DOI: 10.1002/anie.202012092] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Indexed: 12/23/2022]
Abstract
The formal (4+3) cycloaddition of 1,3-dienes with Rh(II) and Au(I) non-acceptor vinyl carbenes, generated from vinylcycloheptatrienes or alkoxyenynes, respectively, leads to 1,4-cycloheptadienes featuring complex and diverse substitution patterns, including natural dyctiopterene C' and a hydroxylated derivative of carota-1,4-diene. A complete mechanistic picture is presented, in which Au(I) and Rh(II) non-acceptor vinyl carbenes were shown to undergo a vinylcyclopropanation/Cope rearrangement or a direct (4+3) cycloaddition that takes place in a non-concerted manner.
Collapse
Affiliation(s)
- Helena Armengol-Relats
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| |
Collapse
|
24
|
Synthesis of Polycyclic Ether-Benzopyrans and In Vitro Inhibitory Activity against Leishmania tarentolae. Molecules 2020; 25:molecules25225461. [PMID: 33233418 PMCID: PMC7700287 DOI: 10.3390/molecules25225461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/14/2020] [Accepted: 11/18/2020] [Indexed: 11/21/2022] Open
Abstract
Construction of a focused library of polycyclic ether-benzopyrans was undertaken in order to discover new therapeutic compounds that affect Leishmania growth and infectivity. This is especially of interest since there are few drug therapies for leishmaniasis that do not have serious drawbacks such high cost, side effects, and emerging drug resistance. The construction of these polycyclic ether-benzopyrans utilized an acetoxypyranone-alkene [5+2] cycloaddition and the Suzuki-Miyaura cross-coupling. The multi-gram quantity of the requisite aryl bromide was obtained followed by effective Pd-catalyzed coupling with boronic acid derivatives. Compounds were tested in vitro using the parasitic protozoan, Leishmania tarentolae. Effects of concentration, time, and exposure to light were evaluated. In addition, the effects on secreted acid phosphatase activity and nitric oxide production were investigated, since both have been implicated in parasite infectivity. The data presented herein are indicative of disruption of the Leishmania tarentolae and thus provide impetus for the development and testing of a more extensive library.
Collapse
|
25
|
Abstract
The synthetically challenging and highly functionalized azabicyclo[6.4.1] ring system, which is found in lycopodium alkaloid lycoclavatumide and some natural molecules, was synthesized for the first time. The key reaction was a diastereoselective type II [5+2] cycloaddition with excellent functional group compatibility. We tried to install the desired eight-membered ring in the final product by RCM reaction.
Collapse
Affiliation(s)
- Xin-Feng Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| |
Collapse
|
26
|
Min L, Hu YJ, Fan JH, Zhang W, Li CC. Synthetic applications of type II intramolecular cycloadditions. Chem Soc Rev 2020; 49:7015-7043. [PMID: 32869796 DOI: 10.1039/d0cs00365d] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Type II intramolecular cycloadditions ([4+2], [4+3], [4+4] and [5+2]) have emerged recently as an efficient and powerful strategy for the construction of bridged ring systems. In general, type II cycloadditions provide access to a wide range of bridged bicyclo[m.n.1] ring systems with high regio- and diastereoselectivity in an easy and straightforward manner. In each section of this review, an overview of the corresponding type II cycloadditions is presented, which is followed by highlights of method development and synthetic applications in natural product synthesis. The goal of this review is to provide a survey of recent advances in the field covering literature up to 2020. The review will serve as a useful reference for organic chemists engaged in the total synthesis of natural products containing bridged bicyclo[m.n.1] ring systems and provide strong stimulus for invention and further advances in this exciting research field.
Collapse
Affiliation(s)
- Long Min
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
| | | | | | | | | |
Collapse
|
27
|
Rokey SN, Simanis JA, Law CM, Pohani S, Willens Behrends S, Bulandr JJ, Ferrence GM, Goodell JR, Andrew Mitchell T. Intramolecular asymmetric oxidopyrylium-based [5 + 2] cycloadditions. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
28
|
Cheng B, Zhang X, Li H, He Y, Li Y, Sun H, Wang T, Zhai H. Synthesis of Pyridothiazepines via a 1,5‐Dipolar Cycloaddition Reaction between Pyridinium 1,4‐Zwitterionic Thiolates and Activated Allenes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000655] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Bin Cheng
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Xinping Zhang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Hui Li
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Yixuan He
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Yun Li
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Haiyan Sun
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Taimin Wang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Hongbin Zhai
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
- State Key Laboratory of Chemical Oncogenomics Shenzhen Engineering Laboratory of Nano Drug Slow-Release Peking University Shenzhen Graduate School Shenzhen 518055 People's Republic of China
| |
Collapse
|
29
|
Liang W, Jiang K, Du F, Yang J, Shuai L, Ouyang Q, Chen Y, Wei Y. Iron‐Catalyzed, Iminyl Radical‐Triggered Cascade 1,5‐Hydrogen Atom Transfer/(5+2) or (5+1) Annulation: Oxime as a Five‐Atom Assembling Unit. Angew Chem Int Ed Engl 2020; 59:19222-19228. [DOI: 10.1002/anie.202007825] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/04/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Wu Liang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Kun Jiang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Fei Du
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Jie Yang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Li Shuai
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Qin Ouyang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Ying‐Chun Chen
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Ye Wei
- College of Pharmacy Army Medical University Chongqing 400038 China
| |
Collapse
|
30
|
Liang W, Jiang K, Du F, Yang J, Shuai L, Ouyang Q, Chen Y, Wei Y. Iron‐Catalyzed, Iminyl Radical‐Triggered Cascade 1,5‐Hydrogen Atom Transfer/(5+2) or (5+1) Annulation: Oxime as a Five‐Atom Assembling Unit. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007825] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wu Liang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Kun Jiang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Fei Du
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Jie Yang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Li Shuai
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Qin Ouyang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Ying‐Chun Chen
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Ye Wei
- College of Pharmacy Army Medical University Chongqing 400038 China
| |
Collapse
|
31
|
Wang J, Blaszczyk SA, Li X, Tang W. Transition Metal-Catalyzed Selective Carbon–Carbon Bond Cleavage of Vinylcyclopropanes in Cycloaddition Reactions. Chem Rev 2020; 121:110-139. [PMID: 32786421 DOI: 10.1021/acs.chemrev.0c00160] [Citation(s) in RCA: 141] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jianhua Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Ji’nan, Shandong P. R. China
| | - Stephanie A. Blaszczyk
- School of Pharmacy, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
- Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Xiaoxun Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, 250012 Ji’nan, Shandong P. R. China
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
- Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| |
Collapse
|
32
|
Watanabe K, Kawashima Y, Mukai C, Takagi T, Suwa Y, Tian YS, Kawashita N. A Comparison between the Cycloadditions of Allenyl- and Vinyl-Cyclopentanes Using Density Functional Theory and GRRM Program. Chem Pharm Bull (Tokyo) 2020; 68:737-741. [DOI: 10.1248/cpb.c20-00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kazuki Watanabe
- Graduate School of Pharmaceutical Sciences, Osaka University
| | | | - Chisato Mukai
- Organization of Frontier Science and Innovation, Kanazawa University
| | - Tatsuya Takagi
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Yukinori Suwa
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Yu-Shi Tian
- Graduate School of Pharmaceutical Sciences, Osaka University
| | | |
Collapse
|
33
|
Li BQ, Qiu ZW, Ma AJ, Peng JB, Feng N, Du JY, Pan HP, Zhang XZ, Xu XT. Diastereoselective Synthesis of Cycloheptannelated Indoles via Lewis-Acid-Catalyzed (4 + 3)-Cyclization of Donor–Acceptor Cyclopropanes. Org Lett 2020; 22:1903-1907. [DOI: 10.1021/acs.orglett.0c00248] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bao Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Zong-Wang Qiu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, P. R. China
| | - Han-Peng Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| |
Collapse
|
34
|
Blaszczyk SA, Glazier DA, Tang W. Rhodium-Catalyzed (5 + 2) and (5 + 1) Cycloadditions Using 1,4-Enynes as Five-Carbon Building Blocks. Acc Chem Res 2020; 53:231-243. [PMID: 31820914 PMCID: PMC7261388 DOI: 10.1021/acs.accounts.9b00477] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cycloaddition reactions are a hallmark in organic synthesis because they provide an efficient way to construct highly substituted carbo- and heterocycles found in natural products and pharmaceutical agents. Most cycloadditions occur under thermal or photochemical conditions, but transition-metal complexes can promote reactions that occur beyond these circumstances. Transition-metal complexation with alkynes, alkenes, allenes, or dienes often alters the reactivity of those π-systems and facilitates access to diverse cycloaddition products. This Account describes our efforts toward the design of novel five-carbon synthons for use in rhodium-catalyzed (5 + n) cycloadditions, which include 3-acyloxy-1,4-enynes (ACEs) for (5 + 1) and (5 + 2) cycloadditions and 3-hydroxy-1,4-enynes (HYEs) for (5 + 1) cycloadditions. Furthermore, this Account includes relevant computational information, mechanistic insights, and applications of these cycloadditions in the synthesis of various highly substituted carbo- and heterocycles. The (5 + n) cycloaddition reactions presented herein share the following common mechanistic features: the 1,2-migration of an acyloxy group in propargyl esters or the ionization of a hydroxyl group in propargylic alcohols, oxidative cyclization to form a metallacycle, insertion of the one- or two-carbon component, and reductive elimination to yield the final product. In conjunction with a cationic rhodium catalyst, we used ACEs for the intramolecular (5 + 2) cycloaddition with tethered alkynes, alkenes, and allenes. In some cases, an electron-deficient phosphine ligand improved the reaction yields, especially when the ACE featured an internal alkyne. We also demonstrated that chirality could be efficiently transferred from a relatively simple starting material to a more complex bicyclic product. Products derived from ACEs with tethered alkenes and allenes contained one or more stereocenters, and high diastereoselectivity was achieved in most of these cases. For ACEs tethered to an allene, the reaction preferentially occurred at the internal alkene. We also switched the positions of the alkene and the alkyne in the 1,4-enyne of our original ACE to provide an inverted ACE variant, which produced products with complementary functionalities. After we successfully developed the Rh-catalyzed intramolecular (5 + 2) cycloaddition, we optimized conditions for the intermolecular version, which required a neutral rhodium catalyst and phosphine ligand. When a terminal alkyne was used as the two-carbon component, high regioselectivity was observed. While investigating the effect of esters on the rate of the intermolecular (5 + 2) cycloadditions, we determined that an electron-rich ester significantly accelerated the reaction. Subsequently, we demonstrated that (5 + 1) cycloadditions undergo this rate enhancement as well in the presence of an ester. Aside from ACEs, we synthesized HYEs in four steps from commercially available 2-aminobenzoic acid for use in the (5 + 1) cycloaddition. Mechanistically, HYEs were designed so that the aniline nitrogen could serve as the nucleophile and the -OH could serve as the leaving group. Using HYEs, we developed a novel method to make substituted carbazoles, dibenzofurans, and tricyclic compounds with a cyclohexadienone moiety. Although the occurrence of transition-metal-catalyzed acyloxy migrations has been known for decades, only recently has their synthetic value been realized. We hope our studies that employ readily available 1,4-enynes as the five-carbon components in (5 + n) cycloadditions can inspire the design of new two-component and multicomponent cycloadditions.
Collapse
Affiliation(s)
- Stephanie A. Blaszczyk
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Daniel A. Glazier
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| |
Collapse
|
35
|
Zhou NN, Ning SS, Li LQ, Zhang JY, Fan MJ, Yang DS, Zhu HT. Brønsted-acid-catalyzed one-pot tandem annulation/[5 + 2]-cycloaddition of o-propargyl alcohol benzaldehydes with alkynes: regioselective and stereoselective synthesis of dibenzo[a,f]azulen-12-ones. Org Chem Front 2020. [DOI: 10.1039/d0qo00522c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The one-pot synthesis of dibenzo[a,f]azulen-12-ones has been established starting from o-propargyl alcohol benzaldehydes and alkynes.
Collapse
Affiliation(s)
- Ni-Ni Zhou
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Si-Si Ning
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Lin-Qiang Li
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Jie-Yun Zhang
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Ming-Jin Fan
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - De-Suo Yang
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| |
Collapse
|
36
|
Roy T, Jacob A, Bhattacharjee S, Biju AT. [8+3]-Cycloaddition of Tropones with Azaoxyallyl Cations. Chem Asian J 2019; 14:4748-4753. [PMID: 31529771 DOI: 10.1002/asia.201901198] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/17/2019] [Indexed: 01/17/2023]
Abstract
Although azaoxyallyl cations are widely used as 1,3-dipoles for various cycloaddition reactions leading to nitrogen-containing heterocycles, their application in higher-order cycloaddition reaction remains scarce. Herein, we present the [8+3]-cycloaddition reaction of tropones with in situ generated azaoxyallyl cations allowing the one-step construction of cycloheptatriene-fused 1,4-oxazinones in moderate to good yields. This base-promoted new carbon-oxygen and carbon-nitrogen bond-forming reaction takes place under mild conditions in the absence of transition metal catalysts.
Collapse
Affiliation(s)
- Tony Roy
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Anu Jacob
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Subrata Bhattacharjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Akkattu T Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| |
Collapse
|
37
|
Bulandr JJ, Grabowski JP, Law CM, Shaw JL, Goodell JR, Mitchell TA. Investigation of Transfer Group, Tether Proximity, and Alkene Substitution for Intramolecular Silyloxypyrone-Based [5 + 2] Cycloadditions. J Org Chem 2019; 84:10306-10320. [PMID: 31322900 DOI: 10.1021/acs.joc.9b01479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Systematic investigation of intramolecular silyloxypyrone-based [5 + 2] cycloadditions revealed three significant factors impacting conversion to cycloadduct: (1) the silyl transfer group has a substantial influence on the rate of reaction, and the robust t-butyldiphenylsilyl group was found to be more effective overall than the conventional t-butyldimethylsilyl group; (2) α,β-unsaturated esters were generally more reactive than terminal olefins and afforded appreciable quantity of cycloadduct even at room temperature; and (3) the proximity of the tether to the silyl transfer group revealed a critical alignment trend between the pyrone and the alkene. Taken together, these investigations provided insight regarding the steric and electronic parameters that impact the scope and limitation of these reactions.
Collapse
Affiliation(s)
- Jacob J Bulandr
- Department of Chemistry , Illinois State University , Campus Box 4160, Normal , Illinois 61790-4160 , United States
| | - Jacob P Grabowski
- Department of Chemistry , Illinois State University , Campus Box 4160, Normal , Illinois 61790-4160 , United States
| | - Chunyin M Law
- Department of Chemistry , Illinois State University , Campus Box 4160, Normal , Illinois 61790-4160 , United States
| | - Jessica L Shaw
- Department of Chemistry , Illinois State University , Campus Box 4160, Normal , Illinois 61790-4160 , United States
| | - John R Goodell
- Department of Chemistry , Illinois State University , Campus Box 4160, Normal , Illinois 61790-4160 , United States
| | - T Andrew Mitchell
- Department of Chemistry , Illinois State University , Campus Box 4160, Normal , Illinois 61790-4160 , United States
| |
Collapse
|
38
|
Anand A, Singh P, Kumar V, Bhargava G. Transition metal catalyzed [6 + 2] cycloadditions. RSC Adv 2019; 9:25554-25568. [PMID: 35530050 PMCID: PMC9070306 DOI: 10.1039/c9ra02839k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 08/02/2019] [Indexed: 11/25/2022] Open
Abstract
The [6 + 2] cycloaddition reactions are one of the important synthetic transformations to construct eight membered carbo-/heterocyclic systems. The present review is an attempt to update readers on transition metal catalyzed [6 + 2] cycloaddition reactions of various 6π-contributing substrates such as cycloheptatrienes (CHT), cyclooctatetrenes (COTT), allenals, vinylcyclobutanones, fulvene etc. employing rhodium, cobalt, titanium, copper, platinum, ruthenium, rhenium and diphenylprolinolsilyl ethers etc. as catalysts. The transition metal catalyzed [6 + 2] cycloaddition reactions with a variety of functionalized substrates provide straightforward access to eight membered cyclic and/or 5/8, 6/8 etc. condensed carbo-/heterocyclic molecules in moderate to good yields.
Collapse
Affiliation(s)
- Amit Anand
- Department of Chemistry, Khalsa College Amritsar 143005 Punjab India
| | - Prabhpreet Singh
- Department of Chemistry, Guru Nanak Dev University Amritsar-143005 India
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University Amritsar-143005 India
| | - Gaurav Bhargava
- Department of Chemical Sciences, IKG Punjab Technical University Kapurthala 144603 Punjab India
| |
Collapse
|
39
|
Nakamura H, Kawakami M, Tsukano C, Takemoto Y. Concise Construction of the ACDE Ring System of Calyciphylline A Type Alkaloids by a [5+2] Cycloaddition. Chemistry 2019; 25:8701-8704. [PMID: 31063603 DOI: 10.1002/chem.201901690] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Indexed: 12/27/2022]
Abstract
A concise route for construction of the ACDE ring skeleton in calyciphylline A type alkaloids was developed using an intramolecular [5+2] cycloaddition reaction of an oxidopyrylium species bearing a tetrasubstituted olefin. Key to the success of this reaction was the combination of acid and base, which accelerated the construction of this skeleton containing a spiro ring and vicinal quaternary carbon centers. The resultant tricyclic ADE ring compound was converted to an ACDE ring model through C-H oxidation and an aza-Wittig reaction.
Collapse
Affiliation(s)
- Hugh Nakamura
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Manami Kawakami
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| |
Collapse
|
40
|
Zhao C, Glazier DA, Yang D, Yin D, Guzei IIA, Aristov MM, Liu P, Tang W. Intermolecular Regio‐ and Stereoselective Hetero‐[5+2] Cycloaddition of Oxidopyrylium Ylides and Cyclic Imines. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201811896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Changgui Zhao
- School of Pharmacy University of Wisconsin-Madison Madison WI 53705 USA
| | - Daniel A. Glazier
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Daoshan Yang
- School of Pharmacy University of Wisconsin-Madison Madison WI 53705 USA
- State Key Laboratory Base of Eco-Chemical Engineering College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 China
| | - Dan Yin
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - IIia A. Guzei
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Michael M. Aristov
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Peng Liu
- Department of Chemistry University of Pittsburgh Pittsburgh PA 15260 USA
| | - Weiping Tang
- School of Pharmacy University of Wisconsin-Madison Madison WI 53705 USA
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| |
Collapse
|
41
|
He S, Yang M, Kang L. Chemoselectivity-Tunable [5 + 2] Cycloadditions of Allenamides and Oxidopyryliums. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
42
|
Gao K, Zhang YG, Wang Z, Ding H. Recent development on the [5+2] cycloadditions and their application in natural product synthesis. Chem Commun (Camb) 2019; 55:1859-1878. [DOI: 10.1039/c8cc09077g] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The recent developments on the [5+2] cycloadditions and their application in the synthesis of complex natural products are discussed.
Collapse
Affiliation(s)
- Kai Gao
- Institute of Medicinal Natural Products
- School of Advanced Study
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Yong-Gang Zhang
- Institute of Medicinal Natural Products
- School of Advanced Study
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Zhiming Wang
- Institute of Medicinal Natural Products
- School of Advanced Study
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Hanfeng Ding
- Institute of Medicinal Natural Products
- School of Advanced Study
- Taizhou University
- Taizhou 318000
- P. R. China
| |
Collapse
|
43
|
Zhou MB, Pi R, Teng F, Li Y, Li JH. Ring-opening formal hetero-[5+2] cycloaddition of 1-tosyl-2,3-dihydro-1H-pyrroles with terminal alkynes: entry to 1-tosyl-2,3-dihydro 2,3-dihydro-1H-azepines. Chem Commun (Camb) 2019; 55:11295-11298. [DOI: 10.1039/c9cc05082e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Lewis acid-catalyzed formal hetero-[5+2] cycloaddition of 2,3-dihydro-1H-pyrroles with alkynes through C(sp2)–N bond cleavage toward 2,3-dihydro-1H-azepines is described.
Collapse
Affiliation(s)
- Ming-Bo Zhou
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education)
| | - Rui Pi
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Fan Teng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education)
| |
Collapse
|
44
|
Zhao C, Glazier DA, Yang D, Yin D, Guzei IIA, Aristov MM, Liu P, Tang W. Intermolecular Regio‐ and Stereoselective Hetero‐[5+2] Cycloaddition of Oxidopyrylium Ylides and Cyclic Imines. Angew Chem Int Ed Engl 2018; 58:887-891. [DOI: 10.1002/anie.201811896] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/19/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Changgui Zhao
- School of Pharmacy University of Wisconsin-Madison Madison WI 53705 USA
| | - Daniel A. Glazier
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Daoshan Yang
- School of Pharmacy University of Wisconsin-Madison Madison WI 53705 USA
- State Key Laboratory Base of Eco-Chemical Engineering College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 China
| | - Dan Yin
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - IIia A. Guzei
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Michael M. Aristov
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Peng Liu
- Department of Chemistry University of Pittsburgh Pittsburgh PA 15260 USA
| | - Weiping Tang
- School of Pharmacy University of Wisconsin-Madison Madison WI 53705 USA
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| |
Collapse
|
45
|
Dalling AG, Yamauchi T, McCreanor NG, Cox L, Bower JF. Carbonylative C−C Bond Activation of Electron-Poor Cyclopropanes: Rhodium-Catalyzed (3+1+2) Cycloadditions of Cyclopropylamides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | | | | | - Lydia Cox
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| | - John F. Bower
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| |
Collapse
|
46
|
Dalling AG, Yamauchi T, McCreanor NG, Cox L, Bower JF. Carbonylative C−C Bond Activation of Electron-Poor Cyclopropanes: Rhodium-Catalyzed (3+1+2) Cycloadditions of Cyclopropylamides. Angew Chem Int Ed Engl 2018; 58:221-225. [DOI: 10.1002/anie.201811460] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/02/2018] [Indexed: 12/12/2022]
Affiliation(s)
| | | | | | - Lydia Cox
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| | - John F. Bower
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| |
Collapse
|
47
|
Tian Z, Cui Q, Liu C, Yu Z. Rhodium‐Catalyzed [4+2+1] Cycloaddition of In Situ Generated Ene/Yne‐Ene‐Allenes and CO. Angew Chem Int Ed Engl 2018; 57:15544-15548. [DOI: 10.1002/anie.201805908] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Zi‐You Tian
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| | - Qi Cui
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| | - Cheng‐Hang Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| | - Zhi‐Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| |
Collapse
|
48
|
Tian Z, Cui Q, Liu C, Yu Z. Rhodium‐Catalyzed [4+2+1] Cycloaddition of In Situ Generated Ene/Yne‐Ene‐Allenes and CO. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805908] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Zi‐You Tian
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| | - Qi Cui
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| | - Cheng‐Hang Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| | - Zhi‐Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, of Ministry of EducationCollege of ChemistryPeking University Beijing 100871 China
| |
Collapse
|
49
|
Zhang J, Xiao W, Hu H, Lin L, Liu X, Feng X. Catalytic Asymmetric [8+3] Annulation Reactions of Tropones or Azaheptafulvenes with meso
-Aziridines. Chemistry 2018; 24:13428-13431. [DOI: 10.1002/chem.201803507] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Jianlin Zhang
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Wanlong Xiao
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Haipeng Hu
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin P. R. China
| |
Collapse
|
50
|
Roscales S, Ortega V, Csákÿ AG. Selective Functionalization of Achmatowicz Rearrangement Products by Reactions with Potassium Organotrifluoroborates under Transition-Metal-Free Conditions. J Org Chem 2018; 83:11425-11436. [PMID: 30036474 DOI: 10.1021/acs.joc.8b01643] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The repertoire of synthetic transformations of the products of the Achmatowicz rearrangement has been expanded by exploring their reactivity with potassium organotrifluoroborates in the absence of transition metals. Depending on the reaction conditions and the substitution pattern of the starting material, the reaction may lead to the stereoselective synthesis of dihydropyranones (2,6- trans), tetrahydropyranones (2,3- cis-2,6- cis) or functionalized 1,4-dicarbonyl compounds. The method has also been adapted for the one-pot synthesis of functionalized pyrroles.
Collapse
Affiliation(s)
- Silvia Roscales
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1 , 28040 Madrid , Spain
| | - Víctor Ortega
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1 , 28040 Madrid , Spain
| | - Aurelio G Csákÿ
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1 , 28040 Madrid , Spain
| |
Collapse
|