Regioselective synthesis of 3-acylated 2,5-dihydrothiophene S,S-dioxides via ultrasound-promoted allylzincation of 3-bromo-2,3-dihydrothiophene S,S-dioxide
作者:Hsi-Hwa Tso、Ta-shue Chou、Su Chun Hung
DOI:10.1039/c39870001552
日期:——
3-Acylated 2,5-dihydrothiophene S,S-dioxides were synthesized from 3-hydroxyalkylated 2,3-dihydrothiophene S,S-dioxides, prepared highly regioselectively via ultrasound-promoted allylzincation of 3-bromo-2,3-dihydro-thiophene S,S-dioxide.
由3-羟基烷基化的2,3-二氢噻吩S,S-二氧化物合成3-酰基化的2,5-二氢噻吩S,S-二氧化物,通过超声促进3-溴-2,3-二氢噻吩的烯丙基锌高选择性地制备3-羟基烷基化的2,3-二氢噻吩S,S-二氧化物S,S-二氧化物。