Synthesis 2022; 54(12): 2787-2798
DOI: 10.1055/a-1750-3080
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Dehydrative and Decarboxylative Coupling of Alkynoic Acids with Allylic Alcohols

Ju Qiu
,
Jingwei Hou
,
Zuolian Sun
,
Peizhong Xie
We gratefully acknowledge financial support from the National Natural Science Foundation of China (21702108), the Natural Science Foundation of Jiangsu Province, China (BK20211257, BK20160977), and the Six Talent Peaks Project in Jiangsu Province (YY-033).


Dedicated to Prof. You Huang on the occasion of his 60th birthday

Abstract

A direct dehydroxylative and decarboxylative coupling between a large number of allylic alcohols and alkynoic acids was realized affording 1,4-enyne motifs in high efficiency. In this reaction, calcium-promoted C–OH bond cleavage was crucial, which facilitated the sequential ­decarboxylation, and thus enabled the palladium-catalyzed allyl­–alkynyl coupling, which occurred in an environmentally benign manner tolerating a wide variety of functional groups. This protocol has been successfully used in preparing anticancer active rooperol derivatives in gram scale.

Supporting Information



Publication History

Received: 11 November 2021

Accepted after revision: 25 January 2022

Accepted Manuscript online:
25 January 2022

Article published online:
08 March 2022

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