2-Azido-1,3-dimethylimidazolinium Salts: Efficient Diazo-Transfer Reagents for 1,3-Dicarbonyl Compounds
作者:Mitsuru Kitamura、Norifumi Tashiro、Satoshi Miyagawa、Tatsuo Okauchi
DOI:10.1055/s-0030-1258457
日期:2011.4
salts to 1,3-dicarbonyl compounds. 2-Azido-1,3-dimethylimidazolinium chloride (ADMC) was prepared by N-nitrosation of N-aminoguanidine or by the reaction of 2-chloro-1,3-dimethylimidazolinium chloride (DMC) and sodium azide. The corresponding phosphate, ADMP, was isolated as a crystal, and was found to be a stable and safe reagent. Both ADMC and ADMP reacted with 1,3-dicarbonyl compounds under mild
我们已经开发了将2-叠氮基-1,3-二甲基咪唑啉鎓盐向1,3-二羰基化合物进行重氮转移的方法。通过 N-氨基胍的N-亚硝化或通过2-氯-1,3-二甲基咪唑啉鎓氯化物(DMC)与叠氮化钠的反应来制备2-叠氮基-1,3-二甲基咪唑啉鎓氯化物(ADMC)。分离出相应的磷酸盐,ADMP,作为晶体,发现它是一种稳定和安全的试剂。ADMC和ADMP都在温和的条件下与1,3-二羰基化合物反应,以高收率得到2-重氮-1,3-二羰基化合物,由于副产物在水中的高度溶解性,因此易于分离。 叠氮化物-重氮化合物-重氮盐-重氮转移-杂环