A convenient one-pot synthesis of asymmetric 1,3,5-triazine-2,4,6-triones and its application towards a novel class of gonadotropin-releasing hormone receptor antagonists
摘要:
A convenient one-pot synthetic route was developed for the preparation of asymmetric 1,3-dialkyl-1,3,5-triazine-2,4,6-triones from readily available alkyl- or aryl-isocyanates, primary amines and N-chlorocarbonyl isocyanate in excellent yields. Subsequent alkylation with N-protected amino alcohols afforded the desired 1, 3,5 -triazine-2,4,6-triones in good yields. This methodology was applied to the synthesis of a chemical library acting as antagonists of the hGnRH receptor. (C) 2004 Elsevier Ltd. All rights reserved.
Tug‐of‐War between Two Distinct Catalytic Sites Enables Fast and Selective Ring‐Opening Copolymerizations
作者:Jianqun Wang、Yinuo Zhu、Maosheng Li、Yanchao Wang、Xianhong Wang、Youhua Tao
DOI:10.1002/anie.202208525
日期:2022.9.5
The power of organocatalysts featuring two distinct catalytic sites in one molecule was illustrated in the ROCOP of epoxides with anhydride, giving excellent selectivity and activity. A chain tug-of-war mechanistic pathway is proposed to rationalize the simultaneous enhancement in monomer activation and nucleophilic attack, thus giving rise to outstanding catalytic performance.