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多磺酸酯超支化聚甘油功能化氧化石墨烯作为一种高效可重复使用的催化剂，用于在无溶剂条件下绿色合成苯并[]吡喃并-[2,3-]吩嗪。

Multisulfonate hyperbranched polyglycerol functionalized graphene oxide as an efficient reusable catalyst for green synthesis of benzo[]pyrano-[2,3-]phenazines under solvent-free conditions.

作者信息

Naeimi Hossein, Zarabi Maryam Farahnak

机构信息

Department of Organic Chemistry, Faculty of Chemistry, University of Kashan Kashan 87317 Islamic Republic of Iran

出版信息

RSC Adv. 2019 Mar 6;9(13):7400-7410. doi: 10.1039/c8ra10180a. eCollection 2019 Mar 1.

DOI:10.1039/c8ra10180a
PMID:35519942
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9061217/
Abstract

A novel acid catalyst was prepared based on growing hyperbranched polyglycerol (HPG) on the surface of graphene oxide. Then, the hydroxyl groups of HPG on graphene oxide were functionalized by sulfonate groups to form an acid catalyst. The catalyst displayed a good loading level of acidic groups on the surface because of coating graphene oxide with HPG. This new catalyst is demonstrated to be highly effective in the preparation of benzo[]pyrano[2,3-]phenazine dyes.

摘要

基于在氧化石墨烯表面生长超支化聚甘油（HPG）制备了一种新型酸催化剂。然后，氧化石墨烯上HPG的羟基被磺酸基团官能化以形成酸催化剂。由于用HPG包覆氧化石墨烯，该催化剂在表面显示出良好的酸性基团负载量。这种新型催化剂被证明在制备苯并[]吡喃并[2,3-]吩嗪染料方面非常有效。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/0d64a4ca00ea/c8ra10180a-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/bf18d54b31f9/c8ra10180a-s1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/a12f4e694558/c8ra10180a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/4e8de6b559db/c8ra10180a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/6e2ddf310858/c8ra10180a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/f0793b73cbf7/c8ra10180a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/868dc5b30b11/c8ra10180a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/274204506dc0/c8ra10180a-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/e13659551fb4/c8ra10180a-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/0d64a4ca00ea/c8ra10180a-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/bf18d54b31f9/c8ra10180a-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/7eebb4f816d5/c8ra10180a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/a12f4e694558/c8ra10180a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/4e8de6b559db/c8ra10180a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/6e2ddf310858/c8ra10180a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/f0793b73cbf7/c8ra10180a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/868dc5b30b11/c8ra10180a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/274204506dc0/c8ra10180a-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/e13659551fb4/c8ra10180a-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4509/9061217/0d64a4ca00ea/c8ra10180a-s3.jpg

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