在磺化石墨烯（GR-SO3H）作为可持续酸催化剂存在的情况下，超声促进去除碳水化合物中的亚苄基和亚异丙基缩醛保护层

IF 2.4 3区化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

Carbohydrate Research Pub Date : 2024-10-11 DOI:10.1016/j.carres.2024.109288

Padmashri Rabha, Rajib Panchadhayee

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引用次数: 0

摘要

制备了磺化石墨烯（GR-SO3H），并将其用作一种高效、可持续的催化剂，在超声（US）辐照下对碳水化合物的 O-亚苄基和 O-异亚丙基缩醛进行脱保护。固体催化剂可通过简单过滤回收，并可多次使用，而反应活性不会有太大损失。这种方法不仅缩短了反应时间，还提高了产率。此外，该方法的操作和纯化过程非常简单，也可用于大规模制备。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Ultrasound-promoted removal of benzylidene and isopropylidene acetal protection of carbohydrates in presence of sulfonated graphene (GR-SO3H) as a sustainable acid catalyst

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Ultrasound-promoted removal of benzylidene and isopropylidene acetal protection of carbohydrates in presence of sulfonated graphene (GR-SO3H) as a sustainable acid catalyst

Sulfonated graphene (GR-SO₃H) was prepared and used as an efficient and sustainable catalyst to deprotect O-benzylidene and O-isopropylidene acetal of carbohydrates under ultrasound (US) irradiation. The solid catalyst can recovered by simple filtration and used several times without much loss in reactivity. This methodology not only reduces the reaction time but also increases the yield. Moreover, the work-up and purification procedure is very simple and also effective for large-scale preparation.

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来源期刊

Carbohydrate Research 化学-生化与分子生物学

CiteScore

5.00

自引率

3.20%

发文量

183

审稿时长

3.6 weeks

期刊介绍： Carbohydrate Research publishes reports of original research in the following areas of carbohydrate science: action of enzymes, analytical chemistry, biochemistry (biosynthesis, degradation, structural and functional biochemistry, conformation, molecular recognition, enzyme mechanisms, carbohydrate-processing enzymes, including glycosidases and glycosyltransferases), chemical synthesis, isolation of natural products, physicochemical studies, reactions and their mechanisms, the study of structures and stereochemistry, and technological aspects. Papers on polysaccharides should have a "molecular" component; that is a paper on new or modified polysaccharides should include structural information and characterization in addition to the usual studies of rheological properties and the like. A paper on a new, naturally occurring polysaccharide should include structural information, defining monosaccharide components and linkage sequence. Papers devoted wholly or partly to X-ray crystallographic studies, or to computational aspects (molecular mechanics or molecular orbital calculations, simulations via molecular dynamics), will be considered if they meet certain criteria. For computational papers the requirements are that the methods used be specified in sufficient detail to permit replication of the results, and that the conclusions be shown to have relevance to experimental observations - the authors'' own data or data from the literature. Specific directions for the presentation of X-ray data are given below under Results and "discussion".