名称:
A Nonplanar Thiophene, 3,4-DI-tert-butyl-2,5-bis(triisopropylsilyl)thiophene
摘要:
Treatment of 2,5-dibromo-3,4-di-tert-butylthiophene with tert-butyllithium followed by reaction with triisopropylsilyl chloride gave a highly congested thiophene, 3,4-di-tert-buty-2,5-bis(triisopropylsilyl)thio-phene, whose thiophene ring is no longer planar.