Synthesis of Symmetric meso-H-Dipyrrin Hydrobromides from 2-Formylpyrroles
摘要:
The reaction of 2-formylpyrroles in acidic methanol gives the corresponding symmetric, meso-H-4,6-dipyrrin hydrobromides. This convenient strategy involves initial deformylation under the acidic conditions, followed by immediate in situ reaction of the resulting alpha-free pyrrole with the remaining 2-formylpyrrole in solution to give the dipyrrin hydrobromide salt in good yield.
[EN] THERAPY AND PHARMACEUTICAL COMPOSITION<br/>[FR] THÉRAPIE ET COMPOSITION PHARMACEUTIQUE
申请人:UNIV SOUTHAMPTON
公开号:WO2017077307A1
公开(公告)日:2017-05-11
A novel class of compounds called perenosins, and their use in the treatment and/or prevention of cancer or a neoplastic condition.
一种名为perenosins的新型化合物类别,以及它们在治疗和/或预防癌症或肿瘤病症中的应用。
Synthesis and reactivity of 2-thionoester pyrroles: a route to 2-formyl pyrroles
作者:Min Joon Kim、Sophie M. Gaube、Michael H. R. Beh、Craig D. Smith、Alison Thompson
DOI:10.1039/c9ra07527e
日期:——
2-Functionalised pyrroles exhibit considerable synthetic utility. Herein, the synthesis and reactivity of 2-thionoester (–C(S)OR) pyrroles is reported. 2-Thionoester pyrroles were synthesised using a Knorr-type approach from aliphatic starting materials. 2-Thionoester pyrroles were reduced to the corresponding 2-formyl pyrroles, or the deuterated formyl variant, in one step using RANEY® nickel, thereby