1
|
Ali S, Khan AT. Metal-free synthesis of quinoline-2,4-dicarboxylate derivatives using aryl amines and acetylenedicarboxylates through a pseudo three-component reaction. Org Biomol Chem 2021; 19:7041-7050. [PMID: 34341812 DOI: 10.1039/d1ob01188j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An efficient, useful and one-pot protocol for the synthesis of quinoline-2,4-dicarboxylate scaffolds is accomplished from aryl amines and dimethyl/diethyl acetylenedicarboxylates using 20 mol% molecular iodine as a catalyst in acetonitrile at 80 °C. In addition, the mechanistic explanation for the formation of the desired products is disclosed. The pivotal role of molecular iodine in the formation of the major products, diester quinoline derivatives, and the minor product, triesters, in two cases is described in the mechanism. The notable advantages of this method are non-involvement of a metal catalyst, avoiding of metal contamination in the final product as well as waste generation, use of a low cost and eco-friendly catalyst, ease of handling, high regioselectivity, shorter reaction time, the formation of one C-N and two C-C bonds and a broad substrate scope with good yields.
Collapse
Affiliation(s)
- Saghir Ali
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | | |
Collapse
|
2
|
Teimouri MB, Bazhrang R. Synthesis of new stable crystalline zwitterionic products from the reactions of 1-methylimidazole, acetylenic esters and strong cyclic CH-acids. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/0308234053431167] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The reactive 1:1 intermediate produced in the reaction between 1-methyl imidazole and dialkyl acetylenedicarboxylates was trapped by strong cyclic CH-acids such as N,N′-dimethylbarbituric acid, Meldrum's acid, cyclohexan-1, 3-dione, indan-1,3-dione, cyclopentan-1,3-dione and tetronic acid to yield stable 1,4-diionic imidazolium betaines in excellent yields.
Collapse
Affiliation(s)
- Mohammad Bagher Teimouri
- Gas Conversion Department, Iran Polymer and Petrochemical Institute, PO Box 14965-115, Tehran, Iran
| | - Reihane Bazhrang
- Gas Conversion Department, Iran Polymer and Petrochemical Institute, PO Box 14965-115, Tehran, Iran
| |
Collapse
|
3
|
Nair V, Menon RS. Nucleophile‐Initiated Catalytic and Multicomponent Reactions. CHEM REC 2018; 19:347-361. [DOI: 10.1002/tcr.201800027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 06/08/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Vijay Nair
- Organic Chemistry SectionCSIR-National Institute for Interdisciplinary Science and Technology Trivandrum 695 019 India
| | - Rajeev S. Menon
- Department of ChemistryCentral University of Haryana Mahendergarh 123 031, Haryana India
| |
Collapse
|
4
|
Chemoselective synthesis of novel aminoindolizines using aminopyridines, acetylenic diesters and α-halo ketones. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
5
|
Mariappan A, Rajaguru K, Muthusubramanian S, Bhuvanesh N. A new facile pyridine-catalyzed hydroacylation of aldehydes with azodicarboxylates under microwave irradiation. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.090] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
6
|
Mehrabi H, Hatami-Pour M. Facile, one-pot synthesis of new phenanthridine derivatives through 1,4-dipolar cycloaddition of phenantridine, activated acetylenes, and aromatic aldehydes. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.05.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
7
|
Nair V, Deepthi A, Ashok D, Raveendran AE, Paul RR. 1,4-Dipolar cycloadditions and related reactions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
8
|
Sun J, Wang F, Hu H, Wang X, Wu H, Liu Y. Copper(II)-Catalyzed Carbon–Carbon Triple Bond Cleavage of Internal Alkynes for the Synthesis of Annulated Indolizines. J Org Chem 2014; 79:3992-8. [DOI: 10.1021/jo500456d] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jinwei Sun
- Jiangsu Key Laboratory of Green Synthetic
for Functional Materials and School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu, PR China
| | - Fuyao Wang
- Jiangsu Key Laboratory of Green Synthetic
for Functional Materials and School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu, PR China
| | - Huayou Hu
- Jiangsu Key Laboratory
for Chemistry of Low-Dimensional Materials, School of Chemistry and
Chemical Engineering, Huaiyin Normal University, Huaian 223300, Jiangsu, PR China
| | - Xiangshan Wang
- Jiangsu Key Laboratory of Green Synthetic
for Functional Materials and School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu, PR China
| | - Hui Wu
- Jiangsu Key Laboratory of Green Synthetic
for Functional Materials and School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu, PR China
| | - Yun Liu
- Jiangsu Key Laboratory of Green Synthetic
for Functional Materials and School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu, PR China
| |
Collapse
|
9
|
Loots L, Haynes DA, Roex TL. Synthesis and solid-state supramolecular chemistry of a series of pyridinium-derived zwitterions. NEW J CHEM 2014. [DOI: 10.1039/c4nj00281d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
10
|
Meng LG, Li CT, Zhang JF, Xiao GY, Wang L. DMAP-promoted multicomponent reaction of cyanoacetylene, MBH carbonate and water: a facile access to functional quaternary carbon. RSC Adv 2014. [DOI: 10.1039/c3ra47105e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
11
|
Bhunia A, Roy T, Pachfule P, Rajamohanan PR, Biju AT. Transition-Metal-Free Multicomponent Reactions Involving Arynes, N-Heterocycles, and Isatins. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304278] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
12
|
Bhunia A, Roy T, Pachfule P, Rajamohanan PR, Biju AT. Transition-Metal-Free Multicomponent Reactions Involving Arynes, N-Heterocycles, and Isatins. Angew Chem Int Ed Engl 2013; 52:10040-3. [PMID: 23913808 DOI: 10.1002/anie.201304278] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 06/16/2013] [Indexed: 01/13/2023]
Affiliation(s)
- Anup Bhunia
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune (India) http://academic.ncl.res.in/ncl_1/at.biju
| | | | | | | | | |
Collapse
|
13
|
Mehrabi H, Hatami-pour M. Synthesis of Functionalized Pyrido[1,2-f]phenanthridines from Phenanthridine, Activated Acetylenes, and Arylidenemalononitriles. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.605240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Hossein Mehrabi
- a Department of Chemistry , Rafsanjan Vali-e-Asr University , Rafsanjan , Iran
| | - Mahdi Hatami-pour
- a Department of Chemistry , Rafsanjan Vali-e-Asr University , Rafsanjan , Iran
| |
Collapse
|
14
|
Maiti G, Karmakar R, Kayal U, Bhattacharya RN. An efficient route to coumarin derivatives under dual catalysis, an organo- and a Lewis acid catalyst. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Deng JC, Chan FW, Kuo CW, Cheng CA, Huang CY, Chuang SC. Assembly of Dimethyl Acetylenedicarboxylate and Phosphanes with Aldehydes Leading to γ-Lactones Bearing α-Phosphorus Ylides as Wittig Reagents. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200400] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
16
|
Shiri M, Heravi MM, Soleymanifard B. Arylidene pyruvic acids (APAs) in the synthesis of organic compounds. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
17
|
|
18
|
Patil DR, Salunkhe SM, Deshmukh MB, Anbhule PV. An efficient synthesis of 2,3,4-trisubstituted quinolines through alkynylation-cyclization at ambient temperature. J Heterocycl Chem 2011. [DOI: 10.1002/jhet.715] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
19
|
Two tandem sequential reactions catalyzed by [Au], N-heterocyclic carbenes (NHC) and organic bases. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.135] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
20
|
Yuan ZL, Wei Y, Shi M. Aza-Michael Addition Reactions of Hydrazones with Activated Alkynes Catalyzed by Nitrogen-Containing Organic Bases. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000365] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
21
|
Triphenylphosphine-catalysed one-pot synthesis of γ-butyrolactone derivatives and highly substituted enones via reaction of dimethyl acetylenedicarboxylate and aryl aldehydes. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
22
|
Terzidis MA, Stephanidou-Stephanatou J, Tsoleridis CA, Terzis A, Raptopoulou CP, Psycharis V. Expeditious one-pot synthesis of highly substituted thiazolo[3,2-a]pyridines involving chromones. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.11.096] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
23
|
|
24
|
4-Picoline-catalyzed hetero-Diels–Alder type reactions: one-pot synthesis of pyrano[4,3-c]chromenes. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
25
|
Terzidis MA, Stephanidou-Stephanatou J, Tsoleridis CA. Engaging a thiazole-DMAD zwitterion in novel one-pot multicomponent reactions involving chromones. Expeditious synthesis of thiazolo- and chromenothiazolopyridines. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.106] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
26
|
Bhuvan Kumar N, Kumara Swamy K. The reaction of allenes with phosphorus(III) compounds bearing a P-NH-(t-Bu) group: isolation of both enantiomers in crystalline form from an achiral system. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.09.153] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
27
|
Waldmann H, Khedkar V, Dückert H, Schürmann M, Oppel I, Kumar K. Asymmetric Synthesis of Natural Product Inspired Tricyclic Benzopyrones by an Organocatalyzed Annulation Reaction. Angew Chem Int Ed Engl 2008; 47:6869-72. [DOI: 10.1002/anie.200802413] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
28
|
Waldmann H, Khedkar V, Dückert H, Schürmann M, Oppel I, Kumar K. Asymmetric Synthesis of Natural Product Inspired Tricyclic Benzopyrones by an Organocatalyzed Annulation Reaction. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802413] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
29
|
Pillai A, Suresh C, Nair V. Pyridine‐Catalyzed Stereoselective Addition of Acyclic 1,2‐Diones to Acetylenic Esters: Synthetic and Theoretical Studies of an Unprecedented Rearrangement. Chemistry 2008; 14:5851-60. [DOI: 10.1002/chem.200800250] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
30
|
Meng LG, Tang K, Guo QX, Xue S. PPh3-catalyzed synthesis of multifunctional vinylesters from terminal alkynoates and aromatic aldehydes. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.04.079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
31
|
Nair V, Devipriya S, Suresh E. Construction of heterocycles via 1,4-dipolar cycloaddition of quinoline–DMAD zwitterion with various dipolarophiles. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.106] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
32
|
Matsuya Y, Hayashi K, Wada A, Nemoto H. Three-Component Coupling Reaction and Cyclization of N-Tosylimines and TMS-Substituted Propiolate Mediated by DABCO. J Org Chem 2008; 73:1987-90. [DOI: 10.1021/jo702649q] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuji Matsuya
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Kousuke Hayashi
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Akiho Wada
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Hideo Nemoto
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| |
Collapse
|
33
|
A facile reaction involving zwitterionic intermediates for the synthesis of 5-hydroxy-2H-pyrrol-2-one derivatives. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
34
|
Nair V, Devipriya S, Eringathodi S. Efficient synthesis of [1,3]oxazino[2,3-a]quinoline derivatives by a novel 1,4-dipolar cycloaddition involving a quinoline–DMAD zwitterion and carbonyl compounds. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.03.123] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
35
|
Shaabani A, Soleimani E. A Novel Three Component Reaction: The Synthesis of Stable, Highly Functionalized 1,4-Diionic Nitrogen Betaines. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500600754737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ahmad Shaabani
- a Department of Chemistry , Shahid Beheshti University , Tehran , Iran
| | - Ebrahim Soleimani
- a Department of Chemistry , Shahid Beheshti University , Tehran , Iran
| |
Collapse
|
36
|
Trofimov BA, Nikitina LP, Andriyankova LV, Mal’kina AG, Afonin AV. Polymerization of pyridine oxirane zwitterions. DOKLADY CHEMISTRY 2006. [DOI: 10.1134/s0012500806050041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
37
|
Swamy KCK, Kumar KP, Kumar NNB. Further Characterization of Mitsunobu-Type Intermediates in the Reaction of Dialkyl Azodicarboxylates with P(III) Compounds. J Org Chem 2006; 71:1002-8. [PMID: 16438512 DOI: 10.1021/jo051997x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Structural characterization of compounds analogous to the proposed intermediates in the Mitsunobu esterification process is achieved by the combined use of NMR spectroscopy and X-ray diffractometric studies. The results show that compounds (t-BuNH)P(mu-N-t-Bu)(2)P[(N-t-Bu)(N-(CO(2)R)-N(H)(CO(2)R))] [R = Et (11), i-Pr (12)], obtained by treating [(t-Bu-NH)P-mu-N-t-Bu](2) (10) with diethylazodicarboxylate (DEAD) or diisopropylazodicarboxylate (DIAD), respectively, have a structure with the NH proton residing between the two nitrogen atoms ((P)N(t-Bu) and (P)N-N(CO(2)Et)); this is the tautomeric form of the expected betaine (t-BuNH)P(mu-N-t-Bu)(2)P(+)[(NH-t-Bu)(N-(CO(2)R)-N(-)(CO(2)R)]. Treatment of ClP(mu-N-t-Bu)(2)P[(N-t-Bu){N-(CO(2)-i-Pr)-N(H)(CO(2)-i-Pr)] (6) with 2,6-dicholorophenol affords (2,6-Cl(2)-C(6)H(3)-O)P(mu-N-t-Bu)(2)P(+)[(NH-t-Bu){N[(CO(2)i-Pr)(HNCO(2)i-Pr)]}](Cl(-))(2,6-Cl(2)-C(6)H(3)-OH) (14) that has a structure similar to that of (CF(3)CH(2)O)P(mu-N-t-Bu)(2)P(+)[(NH-t-Bu){N[(CO(2)i-Pr)(HNCO(2)i-Pr)]}](Cl(-)) (13), but with an additional hydrogen bonded phenol. Both of these have the protonated betaine structure analogous to that of Ph(3)P(+)N(CO(2)R)NH(CO(2)R)(R'CO(2))(-) (2) proposed in the Mitsunobu esterification. Two other compounds, (ArO)P(mu-N-t-Bu)(2)P(+)(NH-t-Bu){N(CO(2)i-Pr)(HNCO(2)i-Pr)}(Cl(-)) [Ar = 2,6-Me(2)C(6)H(3)O- (15) and 2-Me-6-t-Bu-C(6)H(3)-O- (16)], are also prepared by the same route. Although NMR tube reactions of 11 or 12 with tetrachlorocatechol, catechol, 2,2'-biphenol, and phenol revealed significant changes in the (31)P NMR spectra, attempted isolation of these products was not successful. On the basis of (31)P NMR spectra, the phosphonium salt structure (t-BuNH)P(mu-N-t-Bu)(2)P(+)[(HN-t-Bu){N-(CO(2)R)-N(H)(CO(2)R)](ArO(-)) is proposed for these. The weakly acidic propan-2-ol or water did not react with 11 or 12. Treatment of 12 with carboxylic acids/ p-toluenesulfonic acid gave the products (t-BuNH)P(mu-N-t-Bu)(2)P(+)[(HN-t-Bu){N-(CO(2)-i-Pr)-N(H)(CO(2)-i-Pr)](ArCO(2)(-)) [Ar = Ph (18), 4-Cl-C(6)H(4)CH(2) (19), 4-Br-C(6)H(4) (20), 4-NO(2)-C(6)H(4) (21)] and (t-BuNH)P(mu-N-t-Bu)(2)P(+)[(HN-t-Bu){N-(CO(2)-i-Pr)-N(H)(CO(2)-i-Pr)](4-CH(3)-C(6)H(4)SO(3)(-)) (22) that have essentially the same structure as 2. Compound 18 has additional stabilization by hydrogen bonding, as revealed by X-ray structure determination. Finally it is shown that the in situ generated (t-BuNH)P(mu-N-t-Bu)(2)P(+)[(HN-t-Bu){N-(CO(2)Et)-N(H)(CO(2)Et)](4-NO(2)-C(6)H(4)CO(2)(-)) can also effect Mitsunobu esterification. A comparison of the Ph(3)P-DIAD system with the analogous synthetically useful Ph(3)P-dimethyl acetylenedicarboxylate (DMAD) system is made.
Collapse
Affiliation(s)
- K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, A. P., India.
| | | | | |
Collapse
|
38
|
Bhuvan Kumar NN, Chakravarty M, Kumara Swamy KC. Structure and reactivity of tautomeric forms of zwitterionic species from the reaction of phosphorus(iii) compounds with electron deficient alkenes and alkynes. NEW J CHEM 2006. [DOI: 10.1039/b605430g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
39
|
Ding H, Ma C, Yang Y, Wang Y. Unexpected Reaction of Dimethyl Acetylenedicarboxylate with in Situ Generated Arylketenes Catalyzed by 1-Methylimidazole. Org Lett 2005; 7:2125-7. [PMID: 15901150 DOI: 10.1021/ol050492q] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text]. An unexpected 1-methylimidazole-catalyzed reaction of dimethyl acetylenedicarboxylate (DMAD) with in situ generated arylketenes leading to the synthesis of dimethyl 2-arylidenesuccinates under mild conditions is described. A plausible mechanism has been proposed.
Collapse
Affiliation(s)
- Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | | | | | | |
Collapse
|
40
|
Nair V, Rema Devi B, Vidya N, Menon RS, Abhilash N, Rath NP. Novel pyridine catalysed reactions of dimethyl acetylenedicarboxylate (DMAD) and arylmethylidenemalononitriles: a stereoselective synthesis of highly substituted buta-1,3-dienes. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.02.132] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
41
|
Yavari I, Djahaniani H, Moradi L. Synthesis of highly functionalised 2-aminofurans. MENDELEEV COMMUNICATIONS 2004. [DOI: 10.1070/mc2004v014n01abeh001860] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
42
|
Li CQ, Shi M. Reactions of Arylaldehydes and N-Sulfonated Imines with Dimethyl Acetylenedicarboxylate Catalyzed by Nitrogen and Phosphine Lewis Bases. Org Lett 2003; 5:4273-6. [PMID: 14601978 DOI: 10.1021/ol0354324] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] In the reaction of arylaldehydes or N-sulfonated imines (0.5 mmol) with dimethyl acetylenedicarboxylate (DMAD) (0.6 mmol) catalyzed by pyridine or DMAP (20 mol %), we found that (E)-2-aryl-but-2-enedioic acid dimethyl ester 1 or (E)-2-[aryl-(toluene-4-sulfonylimino)methyl]-but-2-enedioic acid dimethyl ester 2 was formed in good yields at 60 degrees C in THF. A plausible mechanism has been proposed.
Collapse
Affiliation(s)
- Chao-Qun Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | | |
Collapse
|
43
|
Matsuya Y, Hayashi K, Nemoto H. A novel modified baylis-hillman reaction of propiolate. J Am Chem Soc 2003; 125:646-7. [PMID: 12526660 DOI: 10.1021/ja028312k] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new reaction of propiolates and aldehydes mediated by DABCO analogous to the Baylis-Hillman reaction is described. This reaction provided novel beta-functionalized Baylis-Hillman products and a new methodology for the generation of alkylidene carbene species.
Collapse
Affiliation(s)
- Yuji Matsuya
- Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University, Sugitani 2630, Japan
| | | | | |
Collapse
|
44
|
Nair V, Sreekanth AR, Abhilash N, Bhadbhade MM, Gonnade RC. A novel three-component reaction for the diastereoselective synthesis of 2H-pyrimido[2,1-a]isoquinolines via 1,4-dipolar cycloaddition. Org Lett 2002; 4:3575-7. [PMID: 12375891 DOI: 10.1021/ol0264004] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] The 1,4-dipole derived from isoquinoline and DMAD has been shown to react readily with N-tosylimines resulting in the diastereoselective synthesis of 2H-pyrimido[2,1-a]isoquinoline derivatives.
Collapse
Affiliation(s)
- Vijay Nair
- Organic Chemistry Division, Regional Research Laboratory, CSIR, Trivandrum 695 019, India.
| | | | | | | | | |
Collapse
|