Studies toward Soraphen A: An Aldol−Metathesis Avenue to the Macrocyclic Framework
摘要:
We describe a convergent approach to soraphen A, 1, that involves coupling of two fragments by an aldol condensation - olefin metathesis sequence. This route permits rapid access to congeners of 1.
A new approach to arylaliphatic 1,5-, 1,6-, and 1,7-dicarbonyl compounds and their monoacetals based on direct anodic oxidation of 1-phenyl- and benzo[c]cycloalkenes
摘要:
A new simple approach to omega-benzoylalkanals, 2-(omega-formylalkyl)benzaldehydes, and their monoacetals was developed based on direct anodic oxidation of 1-phenylcycloalkenes and benzo[c]cycloalkenes in methanol followed by acid hydrolysis of the electrolysis products. The target products are obtained in 53-72 % yields.
Oxidative fragmentation of 1-aryl-1-cycloalkenes using cerium(IV) ammonium nitrate (CAN): some novel observations
作者:Vijay Nair、Sreeletha B Panicker、Siji Thomas、V Santhi、Sindhu Mathai
DOI:10.1016/s0040-4020(02)00261-2
日期:2002.4
1-Phenyl-1-cycloalkenes undergo oxidative fragmentation in presence of CAN in methanol, affording 1,n-dicarbonyl compounds as the major products along with 1,2-dimethoxycycloalkanes. The reaction under deoxygenated conditions afforded the latter in good yields. In the presence of azide ion, fragmentation leading to the corresponding cyanoketones was observed whereas with sultinate only the 1-methoxy-2-sulfonyl cycloalkanes were formed. (C) 2002 Published by Elsevier Science Ltd.
CAN mediated fragmentation of 1-phenylcycloalkenes: Synthesis of monoacetals of 1,n-dicarbonyl compounds
作者:Vijay Nair、Sreeletha B. Panicker
DOI:10.1016/s0040-4039(98)02356-9
日期:1999.1
Phenylcycloalkenes undergo facile oxidative fragmentation in presence of CAN in methanol giving ketoacetals of 1,n-dicarbonyl compounds. (C) 1998 Elsevier Science Ltd. All rights reserved.
Studies toward Soraphen A: An Aldol−Metathesis Avenue to the Macrocyclic Framework
作者:Guillaume Vincent、Darren J. Mansfield、Jean-Pierre Vors、Marco A. Ciufolini
DOI:10.1021/ol060882s
日期:2006.6.1
We describe a convergent approach to soraphen A, 1, that involves coupling of two fragments by an aldol condensation - olefin metathesis sequence. This route permits rapid access to congeners of 1.
A new approach to arylaliphatic 1,5-, 1,6-, and 1,7-dicarbonyl compounds and their monoacetals based on direct anodic oxidation of 1-phenyl- and benzo[c]cycloalkenes
作者:Yu. N. Ogibin、A. I. Ilovaisky、G. I. Nikishin
DOI:10.1007/bf01457781
日期:1996.8
A new simple approach to omega-benzoylalkanals, 2-(omega-formylalkyl)benzaldehydes, and their monoacetals was developed based on direct anodic oxidation of 1-phenylcycloalkenes and benzo[c]cycloalkenes in methanol followed by acid hydrolysis of the electrolysis products. The target products are obtained in 53-72 % yields.