苹果酸诱导的含 Y(III)的锑钨酸盐的组装具有合成咪唑的催化活性

IF 9.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chinese Chemical Letters Pub Date : 2024-07-16 DOI:10.1016/j.cclet.2024.110274

Guoping Yang , Zhoufu Lin , Xize Zhang , Jiawei Cao , Xuejiao Chen , Yufeng Liu , Xiaoling Lin , Ke Li

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引用次数: 0

摘要

合成并表征了一种类似 "握手 "构型的含 Y(III)的二聚锑钨酸盐 [Y4(H2O)8(mal)2(OAc)O(Sb2WV2WVI19O72)2]21-（Y4mal2，H3mal = dl-苹果酸）。Y4mal2 的多阴离子由两个 Dawson-derived {Y2Sb2W21} 分子组成，这两个分子通过两个 mal 配体和一个 μ2 桥接醋酸盐进一步连接，形成一个不对称的多阴离子。值得注意的是，mal 配体的 d 或 l 构型所引起的手性构型会使一个多阴离子中的两个 {Y2Sb2W21} 分子都表现出相同的手性，从而导致 Y4mal2 的外消旋体结晶。此外，Y4mal2 还具有出色的路易斯酸催化活性，可用于以环境友好的方式合成咪唑类化合物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Assembly of Y(III)-containing antimonotungstates induced by malic acid with catalytic activity for the synthesis of imidazoles

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Assembly of Y(III)-containing antimonotungstates induced by malic acid with catalytic activity for the synthesis of imidazoles

A dimeric Y(III)-containing antimonotungstate [Y₄(H₂O)₈(mal)₂(OAc)O(Sb₂W^V₂W^VI₁₉O₇₂)₂]²¹⁻ (Y₄mal₂, H₃mal = dl-malic acid), resembling a “handshake” configuration, was synthesized and characterized. The polyanion of Y₄mal₂ consists of two Dawson-derived {Y₂Sb₂W₂₁} moieties that are further linked by two mal ligands and one μ₂-bridging acetate to form an asymmetric polyanion. Notably, the chiral configuration induced by the d- or l-configuration of the mal ligand results in both {Y₂Sb₂W₂₁} moieties within one polyanion exhibiting identical chirality, leading to the racemate crystallization of Y₄mal₂. Moreover, Y₄mal₂ exhibits excellent Lewis acid catalytic activity for environmentally friendly synthesis of imidazoles.

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来源期刊

Chinese Chemical Letters 化学-化学综合

CiteScore

14.10

自引率

15.40%

发文量

8969

审稿时长

1.6 months

期刊介绍： Chinese Chemical Letters (CCL) (ISSN 1001-8417) was founded in July 1990. The journal publishes preliminary accounts in the whole field of chemistry, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, polymer chemistry, applied chemistry, etc.Chinese Chemical Letters does not accept articles previously published or scheduled to be published. To verify originality, your article may be checked by the originality detection service CrossCheck.