Spiroheterocyclic Systems: New N-Substituted Spiroheterocyclic Naphthenes
作者:Ibrahim M. A. Awad、Ali A. Abdel-Hafez、Maher F. El-Zohry
DOI:10.1135/cccc19940482
日期:——
Spiro and sulfonamide derivatives have been found to be biologically active. In view of this importance, we report the synthesis of some new spiroheterocyclic naphthenes IV - VI.
Tris(trimethylsilyl)silane (TTMSS) : Formation of carbon-centered radicals from oxathiolane and thiazolidine derivatives
作者:Prabhat Arya、Maurice Lesage、Danial D.M. Wayner
DOI:10.1016/0040-4039(91)80630-o
日期:1991.6
Tris(trimethylsilyl)silane (TTMSS) is an efficient reagent for the formation of carbon-centered radicals from 1,3-oxathiolane, 5-oxo-1,3-oxathiolane, N(methylcarbonyl)-1,3-thiazolidine and N(ethoxycarbonyl)-1,3- thiazolidine derivatives by the selective cleavage of the carbon-sulphur bond.
Spiroheterocyclic Systems. V. Synthesis of 3-Substituted-10-spiro(1'-cycloalkane)-thiazolo[4,3-a]quinazolin-4-ones
作者:Zeinab A. Hozien、Ali A. Abdel-Hafez、Ibrahim M. A. Awad、Maher F. El-Zohry
DOI:10.1135/cccc19931699
日期:——
Synthesis of a series of 3-substituted-10-spiro(1'-cycloalkane)-thiazolo[4,3-a]quinazolin-4-ones is described.
本文描述了一系列3-取代-10-螺(1'-环烷基)-噻唑并[4,3-a]喹唑啉-4-酮的合成。
Spiroheterocyclic Systems, I: Spiroheterocycles Related to 1-Oxa-4-thiaspiro[4,4]nonan-2-one and 1-Oxa-4-thiospiro[4,5]decan-2-one. Spiroheterocyclische Systeme, 1. Mitt.: Mit 1-Oxa-4-thiaspiro[4,4]nonan-2-on und 1-Oxa-4-thiaspiro[4,5]decan-2-on verwandte Spiroheterocyclen
作者:Maher F. El-Zohry、Ibrahim M. A. Awad、Ali A. Abdel-Hafez
DOI:10.1002/ardp.19933260209
日期:——
Ei-Zohry, Maher F., Phosphorus, Sulfur and Silicon and the Related Elements, 1992, vol. 66, # 14, p. 305 - 310