723-19-3Relevant academic research and scientific papers
Palladium-catalyzed cyclopropanation of electron-deficient olefins with aryldiazocarbonyl compounds
Chen, Shufeng,Ma, Jian,Wang, Jianbo
scheme or table, p. 6781 - 6783 (2009/04/11)
A concise and efficient protocol for the preparation of cyclopropanes from various aryldiazocarbonyl compounds and electron-deficient olefins catalyzed by Pd(OAc)2 is reported.
Synthesis, stereochemistry, and chiroptical spectra of cyclopropyl lactones and thionolactones
Milewska, Maria J.,Gdaniec, Maria,Polonski, Tadeusz
, p. 3169 - 3180 (2007/10/03)
Several optically active substituted 3-oxabicyclo[3.1.0]hexan-2-ones and their thiocarbonyl analogues were synthesized, and their circular dichroism spectra are reported. It was found that the n-π* Cotton effect sign is determined by the helicity of an inherently chiral chromophore formed by the lactone or thiolactone group and the cyclopropyl moiety. The π-π* Cotton effect of thiocarbonyl compounds shows opposite sign to that observed for the lowest energy transition. The crystal structures of two compounds were solved to establish their molecular geometries. Copyright (C) Elsevier Science Ltd.
Stereochemistry of 1,3-Eliminative Cyclopropanation
Nishiyama, Kazuyoshi,Inouye, Yuzo
, p. 1027 - 1034 (2007/10/02)
The estereochemistry of 1,3-eliminative cyclopropanation was established in the NaH-catalyzed condensation system involving carbanionic reagents with chlorine and phosphate as the leaving group.It was proved by means of product analysis that the steric co
