Synthesis of novel sulfur containing spirocyclic phosphoranes
作者:Arjun C. Sau、Robert R. Holmes
DOI:10.1016/s0022-328x(00)84883-4
日期:1978.8
The synthesis of new spirocyclic phosphoranescontaining both sulfur and oxygen hetero atoms bonded to phosphorus is described.
描述了包含硫和氧杂原子与磷键合的新型螺环磷烷的合成。
A new strategy for chemoselective O-acylation of β-mercapto alcohols via alkylsilyl and stannyl protection
作者:Muchchintala Maheswara、Mirae Kim、Sun-Ju Yun、Jung Jin Ju、Jung Yun Do
DOI:10.1016/j.tetlet.2008.11.047
日期:2009.1
Chemoselective preparation of O-acylated derivatives from bis-protected mercapto alcohols was described. Trialkylsilyl and trialkylstannyl chloride are used to generate an intermediate with O- and S-protection. The intermediates from beta-mercapto alcohols are reactive toward acylating agents and selective to provide O-acylated derivatives. The present preparation involves the direct conversion of alcohol to the corresponding O-acylated compounds without deprotection. (C) 2008 Elsevier Ltd. All rights reserved.
Structures of mixed ligand sulfur-containing spirocyclic phosphoranes