Selective Reductive Dimerization of CO2 into Glycolaldehyde

Zhang Dan; Jarava-Barrera Carlos; Bontemps Sebastien

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Selective Reductive Dimerization of CO2 into Glycolaldehyde

机译：CO2的选择性还原二聚化成甘醇醛

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The selective dimerization of CO2 into glycolaldehyde is achieved in a one-pot two-step process via formaldehyde as a key intermediate. The first step concerns the iron-catalyzed selective reduction of CO2 into formaldehyde via formation and controlled hydrolysis of a bis(boryl)acetal compound. The second step concerns the carbene-catalyzed C-C bond formation to afford glycolaldehyde. Both carbon atoms of glycolaldehyde arise from CO2 as proven by the labeling experiment with (CO2)-C-13. This hybrid organometallic/organic catalytic system employs mild conditions (1 atm of CO2, 25 to 80 degrees C in less than 3 h) and low catalytic loadings (1 and 2.5%, respectively). Glycolaldehyde is obtained in 53% overall yield. The appealing reactivity of glycolaldehyde is exemplified (i) in a dimerization process leading to C-4 aldose compounds and (ii) in a tri-component Petasis-Borono-Mannich reaction generating C-N and C-C bonds in one process.

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《ACS catalysis》 |2021年第8期|共8页
作者
Zhang Dan; Jarava-Barrera Carlos; Bontemps Sebastien;
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作者单位

Univ Toulouse CNRS LCC F-31077 Toulouse France;

Univ Toulouse CNRS LCC F-31077 Toulouse France;

Univ Toulouse CNRS LCC F-31077 Toulouse France;

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正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
关键词
CO2 reduction; organocatalysis; Formose reaction; dimerization; carbohydrates;

机译：二氧化碳减少;有机成分分析;骨液反应;二聚化;碳水化合物;

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Selective Reductive Dimerization of CO2 into Glycolaldehyde

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