One-Pot Desulfonylative Alkylation of N-Sulfonyl Azacycles Using Alkoxides Generated by Phase-Transfer Catalysis
作者:Justin Denton
DOI:10.1055/s-0029-1218627
日期:2010.3
Sulfonamide heterocycles, specifically 3-acylindoles, undergo a deprotection/alkylation sequence in the presence of an appropriate alcohol when cesium carbonate or potassium carbonate and a phase-transfer catalyst are utilized. The outcome of the one-pot protocol was found to be significantly dependent on both the alcohol and sulfonamide heterocycle employed. Strictly anhydrous conditions are not necessary
当使用碳酸铯或碳酸钾和相转移催化剂时,在合适的醇存在下,磺酰胺杂环,特别是3-酰基环,经历脱保护/烷基化序列。发现一锅法的结果很大程度上取决于所用的醇和磺酰胺杂环。严格的无水条件对于该方案不是必需的。 相转移催化-磺酰胺-杂环-裂解-烷基化