Synthesis of functionalized 2-(arylthio)benzoates by formal [3+3] cyclizations of 3-arylthio-1-silyloxy-1,3-butadienes with 3-silyloxy-2-en-1-ones and 1,3-diacylcyclopropanes
作者:Inam Iqbal、Muhammad Imran、Nasir Rasool、Muhammad A. Rashid、Munawar Hussain、Alexander Villinger、Christine Fischer、Peter Langer
DOI:10.1016/j.tet.2009.06.119
日期:2009.9
Functionalized 2-(arylthio)benzoates are prepared by formal [3+3] cyclizations of 3-arylthio-1-trimethylsilyloxy-1,3-butadienes with 3-silyloxy-2-en-1-ones and 1,1-diacylcyclopropanes.
Regioselective Synthesis of 2-(Aryloxythio)benzoates by the First [3+3] Cyclizations of 3-Aryloxythio-1-silyloxybuta-1,3-dienes with 3-Alkoxy-2-en-1-ones
Functionalized 2-(aryloxythio)benzoates were regioselectively prepared by the first [3+3] cyclizations of 3-aryloxythio-1-trimethylsilyloxybuta-1,3-dienes with 3-alkoxy-2-en-1-ones. cyclizations - diaryl sulfides - regioselectivity - pyridines - silyl enol ethers
Synthesis of 2-(arylthio)benzoates by [3+3] cyclocondensations of 3-arylthio-1-silyloxy-1,3-butadienes with 3-oxo-orthoesters, 1,1,3,3-tetramethoxypropane and 1,1-bis(methylthio)-1-en-3-ones
variety of 2-arylthio-4-methoxybenzoates are regioselectively prepared by TiCl4-mediated [3+3] cyclocondensations of 3-arylthio-1-trimethylsilyloxy-1,3-butadienes with 3-oxo-orthoesters. Unsubstituted 2-(arylthio)benzoates were prepared by Me3SiOTf-catalyzed cyclization of 3-arylthio-1-trimethylsilyloxy-1,3-butadienes with 1,1,3,3-tetramethoxypropane. The TiCl4-mediated cyclization of 3-arylthio-1-trimethylsilyloxy-1
Synthesis of 5-(Arylselanyl)-2-(arylsulfanyl)benzoates by [3+3] Cyclocondensation of 3-(Arylsulfanyl)-1-(silyloxy)buta-1,3-dienes with 2-(Arylselanyl)-3-(silyloxy)alk-2-en-1-ones
作者:Inam Iqbal、Muhammad Imran、Peter Langer
DOI:10.1002/hlca.201000110
日期:——
Functionalized 5‐(arylselanyl)‐2‐(arylsulfanyl)benzoates were prepared by [3+3] cyclocondensation of 3‐(arylsulfanyl)‐1‐(silyloxy)buta‐1,3‐dienes with 2‐(arylselanyl)‐3‐(silyloxy)‐alk‐2‐en‐1‐ones.