A facile synthesis of ring-fused alkylidenecyclopropanes by olefination reaction of bicyclo[n.1.0]alkanone N,O-hemiacetals with Wittig reagents
摘要:
Ring-fused alkylidenecyclopropanes. bicyclo[n.1.0]alkylidene derivatives, were readily synthesized by olefination reaction of bicyclo[n.l.0]alkanone N,O-hemiacetals with Wittig reagents in good yields. (C) 2001 Elsevier Science Ltd. All rights reserved.
Stereoselective preparation of 7-exo-amino-7-endo-substituted bicyclo[4.1.0]heptanes
作者:Morshed Alam Chowdhury、Hisanori Senboku、Masao Tokuda、Toshiro Chiba
DOI:10.1016/s0040-4020(02)00064-9
日期:2002.2
Bicyclo[4.1.0]heptan-7-one N,O-hemiacetals undergo substitution reaction with Wittig reagents (Ph3PCHR3) to give stereoselectively the corresponding 7-exo-amino-7-endo-substituted bicyclo[4.1.0]heptanes in good yields.