Synthesis of trans- and cis-14-phenylsulfonyl-1,7,9-trioxadispiro[5.1.5.3]hexadecane
摘要:
The synthesis of the trans- and cis-isomers 1a and 1b of 14-phenylsulfonyl-1,7,9-trioxadispiro-[5.1.5.3]hexadecane via the addition of an alpha-sulfonyl carbanion to delta-valerolactone followed by acid-catalysed cyclization is described. Reductive removal of the sulfone group using Raney nickel afforded the parent bis-spiroacetals 9a and 9b together with the spiroacetal alcohol 10 which underwent oxidative cyclization to the parent bis-spiroacetals 9a and 9b upon treatment with iodobenzene diacetate and iodine.
Synthesis of trans- and cis-14-phenylsulfonyl-1,7,9-trioxadispiro[5.1.5.3]hexadecane
摘要:
The synthesis of the trans- and cis-isomers 1a and 1b of 14-phenylsulfonyl-1,7,9-trioxadispiro-[5.1.5.3]hexadecane via the addition of an alpha-sulfonyl carbanion to delta-valerolactone followed by acid-catalysed cyclization is described. Reductive removal of the sulfone group using Raney nickel afforded the parent bis-spiroacetals 9a and 9b together with the spiroacetal alcohol 10 which underwent oxidative cyclization to the parent bis-spiroacetals 9a and 9b upon treatment with iodobenzene diacetate and iodine.
Synthesis of trans- and cis-14-phenylsulfonyl-1,7,9-trioxadispiro[5.1.5.3]hexadecane
作者:Margaret A. Brimble、Carolyn J. Rush
DOI:10.1039/p19940000497
日期:——
The synthesis of the trans- and cis-isomers 1a and 1b of 14-phenylsulfonyl-1,7,9-trioxadispiro-[5.1.5.3]hexadecane via the addition of an alpha-sulfonyl carbanion to delta-valerolactone followed by acid-catalysed cyclization is described. Reductive removal of the sulfone group using Raney nickel afforded the parent bis-spiroacetals 9a and 9b together with the spiroacetal alcohol 10 which underwent oxidative cyclization to the parent bis-spiroacetals 9a and 9b upon treatment with iodobenzene diacetate and iodine.