Bimolecular Intermolecular-Michael/Intramolecular-Michael/Aromatization Reaction of 1-Cyanocyclopropane 1-Esters or 1,1-Dicyanocyclopropanes: A Straightforward Approach to Fully Substituted Benzenes
摘要:
An efficient and straightforward synthetic protocol has been developed for the preparation of fully substituted benzenes via a [3+3]-cyclodimerization reaction of 1-cyanocyclopropane 1-esters or 1,1-dicyanocyclopropanes for the generation of a wide range of structurally interesting significant compounds. The reaction utilizes Et3N-promoted C-C bond cleavage, two new C-C bond formations of 1-cyanocyclopropane 1-ester and simultaneous aromatization by removal of cyano and ester groups in a domino fashion.
Formal [3+2] cycloaddition of 1-cyanocyclopropane 1-ester with pyridine, quinoline or isoquinoline: a general and efficient strategy for construction of cyanoindolizine skeletons
作者:Juanjuan Liu、Lanxiang Zhou、Weijian Ye、Cunde Wang
DOI:10.1039/c4cc03267e
日期:——
An efficient and straightforward preparation of cyanoindolizine derivatives via a cycloaddition reaction between 1-cyanocyclopropane 1-ester and pyridine or benzopyridine.
Efficient strategy for construction of 6-carbamoylfulvene-6-carboxylate skeletons via [3 + 2] cycloaddition of 1-cyanocyclopropane 1-ester with β-nitrostyrenes
作者:Chen Tan、Weijian Ye、Juan Yao、Juanjuan Liu、Shuwen Xue、Yang Li、Cunde Wang
DOI:10.1039/c5ra02918j
日期:——
An efficient and straightforward the preparation of 6-carbamoylfulvene-6-carboxylates via a cycloaddition reaction between 1-cyanocyclopropane 1-ester and β-nitrostyrenes.