1,4-Bis(acylsilanes) were prepared by substitution of 1,2-bis(triflates) with 2-lithio-2-trimethylsilyl-1,3-dithiane or by silylation of 1,2-bis([1,3]dithian-2-yl)ethane and dethioketalization with methyl iodide or mercuric salts. The reaction with 1,2-dihalogenated alkanes gave dehydrodimers of 2-trialkylsilyl-1,3-dithianes. The cyclodehydration of the 1,4-bis(trialkylsilyl)-1,4-butanediones gave 2,5-bis(trialkylsilyl) furanes. (C) 2000 Elsevier Science Ltd. All rights reserved.
HEMBRE, R. T.;SCOTT, CARL P.;NORTON, JACK R., J. ORG. CHEM., 52,(1987) N 16, 3650-3654
作者:HEMBRE, R. T.、SCOTT, CARL P.、NORTON, JACK R.
DOI:——
日期:——
Conversion of olefins to ditriflates by .mu.-oxobis[(trifluoromethanesulfonato)(phenyl)iodine]