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Et2 Zn-Mediated Gem-Dicarboxylation of Cyclopropanols with CO2.

ABSTRACT: An unprecedented Et2 Zn-mediated gem-dicarboxylation of C─C/C─H single bond of cyclopropanols with CO2 is disclosed, which provides a straightforward and efficient methodology for the synthesis of a variety of structurally diverse and useful malonic acids in moderate to excellent yields. The protocol features mild reaction conditions, excellent functional group compatibility, broad substrate scope, and facile derivatization of the products. DFT calculations confirm that the transition-metal-free transformation proceeds through a novel ring-opening/α-functionalization/ring-closing/ring-opening/β-functionalization (ROFCOF) process, and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) plays dual important roles in the transformation.

SUBMITTER: Liu H 

PROVIDER: S-EPMC10916615 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature

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Et<sub>2</sub> Zn-Mediated Gem-Dicarboxylation of Cyclopropanols with CO<sub>2</sub>.

Liu Hongjian H   Shi Lei L   Tan Xiaobin X   Kang Bangxiong B   Luo Gen G   Jiang Huanfeng H   Qi Chaorong C  

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 20231221 9

An unprecedented Et<sub>2</sub> Zn-mediated gem-dicarboxylation of C─C/C─H single bond of cyclopropanols with CO<sub>2</sub> is disclosed, which provides a straightforward and efficient methodology for the synthesis of a variety of structurally diverse and useful malonic acids in moderate to excellent yields. The protocol features mild reaction conditions, excellent functional group compatibility, broad substrate scope, and facile derivatization of the products. DFT calculations confirm that the  ...[more]