Tetrabutylammonium Fluoride: A Powerful Catalyst for the Regioselective Opening of Epoxides with Thiols
作者:Domenico Albanese、Dario Landini、Michele Penso
DOI:10.1055/s-1994-25399
日期:——
Tetrabutylammonium fluoride (1) catalyses under mild conditions the opening of epoxides 2a-k with thiols 3-6 to produce the corresponding ß-hydroxy thioethers 7-11 in excellent yields (88-100%) and with high regioselectivity. Furthermore, O-protected glycidols react without any loss of the protective group.
四丁基氟化铵(1)在温和的条件下催化环氧化物 2a-k 与硫醇 3-6 的开环反应,生成相应的 ß- 羟基硫醚 7-11,收率极高(88%-100%),具有很高的区域选择性。此外,受 O 保护的缩水甘油在反应过程中不会损失任何保护基团。
APPARAO, SATYAM;SCHMIDT, RICHARD R., SYNTHESIS,(1987) N 10, 896-899
作者:APPARAO, SATYAM、SCHMIDT, RICHARD R.
DOI:——
日期:——
Synthesis of Functionally Substituted α,β-Unsaturated Carbonyl Compounds
作者:Satyam Apparao、Richard R. Schmidt
DOI:10.1055/s-1987-28113
日期:——
Epichlorohydrin and glycidol are transformed in a four step sequence into β-dimethylamino-α-phenylthio-substituted α,β-unsaturated carbonyl compounds 5, possessing differently O-protected oxymethyl substituents at the carbonyl group. These compounds are of value as intermediates in inverse-type hetero-Diels-Alder reactions.