Synthesis of a tert-butyl substituted bis(silirane) and comparison with its methyl and phenyl analogs
作者:Kothanda Rama Pichaandi、Joel T. Mague、Mark J. Fink
DOI:10.1016/j.jorganchem.2010.10.043
日期:2011.5
The detailed syntheses of a series of substituted bis(silirane)s (Me4C2SiR)2 R = Me (1a), Ph (1b), tert-butyl (1c)} are reported. The tert-butyl derivative (1c) shows steric congestion which results in conformational rigidity in solution with respect to Si–Si bond rotation. This contrasts with the methyl (1a) and phenyl (1b) analogs. The rotational barriers of all three bis(silirane)s were examined