1
|
Mehdi M, Bushnell EAC, Nikoo S, Gauld JW, Green JR. Generation and Reactions of a Benzodehydrotropylium Ion-Co 2(CO) 6 Complex. ACS OMEGA 2019; 4:18600-18608. [PMID: 31737819 PMCID: PMC6854560 DOI: 10.1021/acsomega.9b02390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/15/2019] [Indexed: 05/08/2023]
Abstract
A series of 7-methylenedehydrobenzo[7]annulen-5-ol hexacarbonyldicobalt complexes were generated by Hosomi-Sakurai reactions of allylsilanes containing o-alkynylarylaldehyde-Co2(CO)6 complexes. One of the cyclization products was converted into its corresponding dihydrobenzo[7]annulen-7-ol hexacarbonyldicobalt complex, an immediate precursor to a benzodehydrotropylium-Co2(CO)6. The cation was generated in situ and reacted with four nucleophiles, and its aromatic stabilization was determined by computational methods.
Collapse
|
2
|
Sugiura H, Yamazaki S, Go K, Ogawa A. Intramolecular Cyclization of 3,3-Diarylpropenylamides of Electron-Deficient Alkenes: Stereoselective Synthesis of Functionalized Hexahydrobenzo[ f
]isoindoles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hirotaka Sugiura
- Department of Applied Chemistry; Graduate School of Engineering; Osaka Prefecture University; Gakuen-cho 1-1 599-8531 Nakaku, Sakai Osaka Japan
| | - Shoko Yamazaki
- Department of Chemistry; Nara University of Education; Takabatake-cho 630-8528 Nara Japan
| | - Kakeru Go
- Department of Chemistry; Nara University of Education; Takabatake-cho 630-8528 Nara Japan
| | - Akiya Ogawa
- Department of Applied Chemistry; Graduate School of Engineering; Osaka Prefecture University; Gakuen-cho 1-1 599-8531 Nakaku, Sakai Osaka Japan
| |
Collapse
|
3
|
Cormier M, Ahmad M, Maddaluno J, De Paolis M. Forging C–C Bonds with Hindered Nucleophiles and Carbonyl Electrophiles: Reactivity and Selectivity of Allylic Tin Reagents/n-BuLi. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Morgan Cormier
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), 76000 Rouen, France
| | - Maha Ahmad
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), 76000 Rouen, France
| | - Jacques Maddaluno
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), 76000 Rouen, France
| | - Michaël De Paolis
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), 76000 Rouen, France
| |
Collapse
|
4
|
Butt M, Feng X, Yamamoto Y, Almansour AI, Arumugam N, Kumar RS, Bao M. Unsupported Nanoporous Gold-Catalyzed Chemoselective Reduction of α,β-Unsaturated Aldehydes Using Formic Acid as Hydrogen Source. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700130] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Madiha Butt
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 China
| | - Xiujuan Feng
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 China
| | - Yoshinori Yamamoto
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 China
- WPI-AIMR (WPI-Advanced Institute for Materials Research); Tohoku University; Sendai 980-8577 Japan
| | - Abdulrahman I. Almansour
- Department of Chemistry; College of Sciences; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Natarajan Arumugam
- Department of Chemistry; College of Sciences; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry; College of Sciences; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Ming Bao
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 China
| |
Collapse
|
5
|
Yamazaki S, Wada J, Kakiuchi K. Stereospecific cyclization reaction of alkenyl esters and amides of ethenetricarboxylate. CAN J CHEM 2015. [DOI: 10.1139/cjc-2015-0129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The stereospecificity of the cyclization reaction of (E)- and (Z)-2-alkenyl esters and amides of ethenetricarboxylate has been examined. The reaction of (E)/(Z)-2-butenyl esters with AlCl3 or FeCl3 gave trans-substituted chlorinated γ-lactone diastereomers stereospecifically. (E)/(Z)-2-butenyl and pentenyl amides undergo an intramolecular ene reaction at room temperature gradually. At 80 °C, the (Z)-alkenyl amides were transformed to cis-substituted ene adducts and the (E)-amides were transformed to cis- and trans-substituted ene adduct mixtures. The reaction of (E)/(Z)-2-alkenyl amides with ZnI2 gave trans-substituted γ-lactam diastereomers stereospecifically along with the ene adducts.
Collapse
Affiliation(s)
- Shoko Yamazaki
- Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Junya Wada
- Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama, Ikoma, Nara 630-0192, Japan
| |
Collapse
|
6
|
Xie Z, Li G, Zhao G, Wang J. Efficient Allylation of Active Ketones Promoted by p-Nitrobenzoic Acid. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
7
|
Hayashi Y, Yamaguchi H, Toyoshima M, Okado K, Toyo T, Shoji M. Formal Total Synthesis of Fostriecin by 1,4-Asymmetric Induction with an Alkyne-Cobalt Complex. Chemistry 2010; 16:10150-9. [DOI: 10.1002/chem.201000795] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
8
|
Kerric G, Grognec EL, Fargeas V, Zammattio F, Quintard JP, Biesemans M, Willem R. Synthesis, characterization and primary evaluation of the synthetic efficiency of supported vinyltins and allyltins. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.01.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Menezes FG, Kolling R, Bortoluzzi AJ, Gallardo H, Zucco C. Hexabromoacetone as tribromoacetylating agent of alcohols and amines and as mediator in the conversion of carboxylic acids into amides in the presence of triphenylphosphine. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.093] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
10
|
Rehbein J, Leick S, Hiersemann M. Gosteli-Claisen rearrangement: substrate synthesis, simple diastereoselectivity, and kinetic studies. J Org Chem 2009; 74:1531-40. [PMID: 19152265 DOI: 10.1021/jo802303m] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The results of kinetic studies on the uncatalyzed [3,3]-sigmatropic rearrangement of 2-alkoxycarbonyl-substituted allyl vinyl ethers are reported. Apparently first reported by Gosteli in 1972, this variation of a Claisen rearrangement enjoyed a shadowy existence for three decades until its potential for the development of a catalytic asymmetric Claisen rearrangement was discovered. Inspired by this development, we have studied substituent and solvent rate effects, and we provide evidence that a chairlike transition state is highly favorable for the uncatalyzed Gosteli-Claisen rearrangement.
Collapse
Affiliation(s)
- Julia Rehbein
- Fakultät Chemie, Technische Universität Dortmund, Germany.
| | | | | |
Collapse
|
11
|
Hayashi Y, Yamaguchi H, Toyoshima M, Okado K, Toyo T, Shoji M. Formal Total Synthesis of Fostriecin via 1,4-Asymmetric Induction Using Cobalt-Alkyne Complex. Org Lett 2008; 10:1405-8. [DOI: 10.1021/ol800195g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Hirofumi Yamaguchi
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Maya Toyoshima
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kotaro Okado
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takumi Toyo
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Mitsuru Shoji
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| |
Collapse
|
12
|
|
13
|
Hayashi Y, Yamaguchi H, Toyoshima M, Nasu S, Ochiai K, Shoji M. 1,4-Asymmetric Induction using a Cobalt Alkyne Complex. Organometallics 2007. [DOI: 10.1021/om700961e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Hirofumi Yamaguchi
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Maya Toyoshima
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Satoshi Nasu
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Koji Ochiai
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Mitsuru Shoji
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| |
Collapse
|