Properties and Reactions of Substituted 1,2-Thiazetidine 1,1-Dioxides: Functionalization and Reactions at C(4) of theβ-Sultam
作者:Herbert Plagge、Nico Manicone、Hans-Hartwig Otto
DOI:10.1002/hlca.200490144
日期:2004.6
disubstituted derivatives by reactions of N-silylated β-sultams with electrophiles in the presence of BuLi or LDA. As electrophiles, ketones, chlorosilanes, a β-sultam, CO2, chloroformiate, halogen, azodicarboxylate, phenyltriazoledione, tosyl azide, 1,3,5-triazine, propyl nitrate, and phenyl isocyanate were used. Furthermore, a number of derivatives of these substitution products were synthesized. All
在BuLi或LDA的存在下,通过N-甲硅烷基化的β- sultams与亲电试剂的反应,通过合成单取代和二取代的衍生物,可以在β - sultam环的4位引入官能团。作为亲电子试剂,使用了酮,氯硅烷,β- sultam,CO 2,氯甲酸酯,卤素,偶氮二羧酸酯,苯基三唑二酮,甲苯磺酰基叠氮化物,1,3,5-三嗪,硝酸丙酯和异氰酸苯酯。此外,合成了这些取代产物的许多衍生物。所有产品均通过标准光谱学方法进行了表征,并通过计算对构象进行了研究。