Palladium-charcoal Catalyzed Direct Esterification of Aldehydes to Esters by NaIO4

IF 1.7 3区 化学 Q3 CHEMISTRY, ORGANIC
Md. Mohinuddin, Kajol Ahmed, Izarul Islam, Anamul Hossain, Harendra N. Roy
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引用次数: 0

Abstract

:: An efficient direct oxidation method was developed to oxidize some aromatic and aliphatic aldehydes to esters by the dual utilization of NaIO4 and Pd-C. At ambient conditions, various aldehydes were employed in a clean esterification reaction to afford numerous esters in good to excellent yields. By this adopted method, some multifunctional aldehydes, high-energy-containing aromatic and unsaturated aldehydes, were advantageously oxidized to esters without noticeable difficulties. Moreover, no over-oxidation occurred to alcohols, and most byproducts were not formed during this oxidation process. Conventional and some modern methods lag behind owing to their easier operability and easy work-up process. This investigation has proven that the required oxidant (NaIO4) or catalyst (Pd-C) is useless to employ in excess, although some current methods utilize hugely expensive reagents for such conversions. Mundane reaction set-up, easy product recovery technique, non-toxic catalyst, and cheap and available starting materials are the noteworthy advantages of this method.
钯炭催化 NaIO4 将醛直接酯化成酯
::研究人员开发了一种高效的直接氧化法,通过同时使用 NaIO4 和 Pd-C,将一些芳香族和脂肪族醛氧化成酯。在常温条件下,利用各种醛进行清洁的酯化反应,以良好至极佳的收率获得了多种酯。通过这种方法,一些多功能醛、高能量芳香族醛和不饱和醛被有效地氧化成酯,而不会出现明显的困难。此外,在此氧化过程中不会出现过度氧化成醇的情况,也不会产生大多数副产品。传统方法和一些现代方法之所以落后,是因为它们更易于操作,工作过程更简便。这项研究证明,过量使用所需的氧化剂(NaIO4)或催化剂(Pd-C)是没有用的,尽管目前的一些方法使用昂贵的试剂进行此类转化。这种方法的显著优点是:反应设置简单、产品回收技术容易、催化剂无毒、起始材料便宜易得。
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来源期刊
Current Organic Chemistry
Current Organic Chemistry 化学-有机化学
CiteScore
3.70
自引率
7.70%
发文量
76
审稿时长
1 months
期刊介绍: Current Organic Chemistry aims to provide in-depth/mini reviews on the current progress in various fields related to organic chemistry including bioorganic chemistry, organo-metallic chemistry, asymmetric synthesis, heterocyclic chemistry, natural product chemistry, catalytic and green chemistry, suitable aspects of medicinal chemistry and polymer chemistry, as well as analytical methods in organic chemistry. The frontier reviews provide the current state of knowledge in these fields and are written by chosen experts who are internationally known for their eminent research contributions. The Journal also accepts high quality research papers focusing on hot topics, highlights and letters besides thematic issues in these fields. Current Organic Chemistry should prove to be of great interest to organic chemists in academia and industry, who wish to keep abreast with recent developments in key fields of organic chemistry.
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