T3P® (propylphosphonic anhydride) mediated conversion of carboxylic acids into acid azides and one-pot synthesis of ureidopeptides
作者:Basavaprabhu、N. Narendra、Ravi S. Lamani、Vommina V. Sureshbabu
DOI:10.1016/j.tetlet.2010.04.002
日期:2010.6
A general, mild, efficient, and environmentally benign protocol, which makes use of T3P® as an acid activating agent for the direct synthesis of acid azides from carboxylic acids is described. Further, the protocol is employed for the one-potsynthesis of α-ureidopeptides starting from N-protected α-amino acids.
A conversion of o-phenylenediamines into benzotriazoles was achieved at room temperature using tert-butyl nitrite. The optimized conditions are also well suited for the transformation of sulfonyl and acyl hydrazines into corresponding azides. This protocol does not require any catalyst or acidic medium. The desired products were obtained in excellent yields in a short span of time.
A mild and efficient method for the preparation of acyl azides from carboxylic acids using triphosgene
作者:V.K. Gumaste、B.M. Bhawal、A.R.A.S. Deshmukh
DOI:10.1016/s0040-4039(01)02377-2
日期:2002.2
An efficient use of triphosgene for the preparation of various acyl azides from carboxylic acids and sodium azide is described.
描述了三光气从羧酸和叠氮化钠制备各种酰基叠氮化物的有效用途。
Synthesis of acyl azides from carboxylic acids using cyanuric chloride
作者:B.P. Bandgar、S.S. Pandit
DOI:10.1016/s0040-4039(02)00508-7
日期:2002.4
A mild, efficient and general method for the preparation of acyl azidesfromcarboxylicacids and sodium azide using cyanuric chloride is described.
描述了使用氰尿酰氯从羧酸和叠氮化钠制备酰基叠氮化物的温和,有效和通用的方法。
Direct and facile synthesis of acyl azides from carboxylic acids using the trichloroisocyanuric acid–triphenylphosphine system
作者:Batool Akhlaghinia、Hamed Rouhi-Saadabad
DOI:10.1139/cjc-2011-0493
日期:2013.3
A mild, efficient, and practical method for the one-step synthesis of acyl azides from carboxylic acids using a safe and inexpensive mixed reagent, trichloroisocyanuric acid–triphenylphosphine, is described.