Padmanabhan, P. V.; Ramana, D. V.; Ramadas, S. R., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 957 - 958
Padmanabhan, P. V.; Ramana, D. V; Ramadas, S. R., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 1, p. 1 - 4
Herein we present a photocatalyst- and additive-free radical hydroacylation of electron-poor double bonds under mild reaction conditions. Using 4-acyl-Hantzsch ester radical reservoirs, various Michaelacceptors, enones and para-quinone methide substrates could be used. The protocol enabled further derivatizations and it could also be extended to a few unactivated alkenes. Moreover, the nature of the
Ru- and Co-Catalyzed Intermolecular Carbonyl–Alkyne Metathesis Reactions of 1<i>H</i>-Indene-1,2,3-triones with Internal Alkynes
作者:Yuhang Wang、Peng Ma、Jianhui Wang
DOI:10.1021/acs.orglett.4c00751
日期:2024.4.19
The catalyst-dependent intermolecular carbonyl–alkyne metathesis (CAM) reaction of 1H-indene-1,2,3-triones with internal alkynes was realized using Ru and Co catalysts. 2-(2-Oxo-1,2-diphenylethylidene)-1H-indene-1,3(2H)-dione derivatives were obtained using a Ru catalyst, whereas S-alkyl 2-(1,3-dioxo-1,3-dihydro-2H-inden-2-ylidene)-2-phenylethanethioates were prepared using a Co catalyst. These transformations
使用Ru和Co催化剂实现了1 H-茚-1,2,3-三酮与内部炔烃的依赖于催化剂的分子间羰基-炔复分解(CAM)反应。使用Ru催化剂得到2-(2-Oxo-1,2-二苯基亚乙基)-1 H-茚-1,3(2 H )-二酮衍生物,而S-烷基2-(1,3-二氧代-1使用Co催化剂制备3-二氢-2H-茚-2-亚基)-2-苯基乙硫酸酯。这些转化导致合成了具有广泛底物范围、优异的区域控制和克级适应性的 α,β-不饱和羰基化合物。这种使用 Co 或 Ru 催化剂的催化策略很少被描述用于其他成熟的 CAM 催化剂。
Padmanabhan, P. V.; Ramana, D. V.; Ramadas, S. R., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 726 - 728
作者:Padmanabhan, P. V.、Ramana, D. V.、Ramadas, S. R.
DOI:——
日期:——
PADMANABHAN, P. V.;RAMANA, D. V.;RAMADAS, S. R., INDIAN J. CHEM. B, 27,(1988) N, C. 726-728
作者:PADMANABHAN, P. V.、RAMANA, D. V.、RAMADAS, S. R.
DOI:——
日期:——
PADMANABHAN, P. V.;RAMANA, D. V.;RAMADAS, S. R., INDIAN J. CHEM. B., 27,(1988) N0, C. 957-958
作者:PADMANABHAN, P. V.、RAMANA, D. V.、RAMADAS, S. R.