Skeletal Editing of Pyrimidines to Pyrazoles by Formal Carbon Deletion,Journal of the American Chemical Society

当前位置： X-MOL 学术 › J. Am. Chem. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Skeletal Editing of Pyrimidines to Pyrazoles by Formal Carbon Deletion
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2022-11-28 , DOI: 10.1021/jacs.2c10746
G Logan Bartholomew ₁ , Filippo Carpaneto ₁ , Richmond Sarpong ₁

Affiliation

A method for the conversion of pyrimidines into pyrazoles by a formal carbon deletion has been achieved guided by computational analysis. The pyrimidine heterocycle is the most common diazine in FDA-approved drugs, and pyrazoles are the most common diazole. An efficient method to convert pyrimidines into pyrazoles would therefore be valuable by leveraging the chemistries unique to pyrimidines to access diversified pyrazoles. One method for the conversion of pyrimidines into pyrazoles is known, though it proceeds in low yields and requires harsh conditions. The transformation reported here proceeds under milder conditions, tolerates a wide range of functional groups, and enables the simultaneous regioselective introduction of N-substitution on the resulting pyrazole. Key to the success of this formal one-carbon deletion method is a room-temperature triflylation of the pyrimidine core, followed by hydrazine-mediated skeletal remodeling.

中文翻译：

通过形式碳缺失将嘧啶骨架编辑为吡唑

在计算分析的指导下，已经实现了一种通过正式碳缺失将嘧啶转化为吡唑的方法。嘧啶杂环是FDA批准的药物中最常见的二嗪，吡唑是最常见的二唑。因此，通过利用嘧啶独特的化学性质来获得多样化的吡唑，将嘧啶转化为吡唑的有效方法将是有价值的。已知一种将嘧啶转化为吡唑的方法，但其产率低且需要苛刻的条件。这里报道的转化在较温和的条件下进行，耐受多种官能团，并且能够在所得吡唑上同时区域选择性地引入N-取代。这种正式的一碳缺失方法成功的关键是嘧啶核心的室温三氟甲基化，然后是肼介导的骨骼重塑。

更新日期：2022-11-28

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11