85460-60-2Relevant articles and documents
One-pot synthesis of cyclopropane derivatives with a cis : Trans stereoselectivity by Wittig olefination-sulfur ylide cyclopropanation sequence
Huang, Wenhua,Wang, Lai-Ling
, p. 380 - 384 (2013/07/26)
Cyclopropane derivatives were synthesised in one pot from aromatic aldehydes, phenacyltriphenylphosphonium bromide, and S-phenacylthiolanium bromide by a Wittig olefination-sulfur ylide cyclopropanation sequence. When Cs2CO3 was used as the base and CH3CN/water (8:2, v/v) as the solvent, the major product was the cis-1,2-dibenzoyl cyclopropane. In contrast, when using DBU as the base and MeOH as the solvent, the major product was transdibenzoyl cyclopropane. In some cases, the major isomer was obtained in high purity and good yield by simple filtration.
Cyclopropanation of α,β-Unsaturated Ketones with Dimethylsulphonium Phenacylide Using Phase Transfer Catalysis
Reddy, D. Bashkar,Reddy, B. Venkata Ramana,Balaji, T.
, p. 959 - 960 (2007/10/02)
cis-1,2-Dibenzoyl-3-arylcyclopropanes (II) have been prepared by treating α,β-unsaturated ketones (I) and phenyldimethylsulphonium bromide in methylene chloride with 50percent NaOH solution in the presence of benzyltriethylammonium chloride.The compounds
