Sulphuric acid adsorbed on silica gel: An efficient catalyst for the protection and deprotection of alcohols with dihydropyran

M M Heravi; M A Bigdeli; N Nahid

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Sulphuric acid adsorbed on silica gel: An efficient catalyst for the protection and deprotection of alcohols with dihydropyran

机译：硅胶上吸附的硫酸：用二氢吡喃保护和脱保护醇的有效催化剂

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Alcohols are tetrahydropyranylated in the presence of sulphuric acid adsorbed on silica gel in dichloromethane in good to excellent yields. Addition of methanol brings about teh complete deprotection.

机译：在存在于二氯甲烷中的硫酸吸附硫酸的情况下，乙醇可以四氢吡喃基化，收率很好。甲醇的加入导致完全脱保护。

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《Indian Journal of Chemistry, Section B. Organic Including Medicinal》 |1999年第11期|共2页
作者
M M Heravi; M A Bigdeli; N Nahid;
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正文语种 eng
中图分类化学;化学工业;
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1. Sulphuric acid adsorbed on silica gel: An efficient catalyst for the protection and deprotection of alcohols with dihydropyran [J] . M M Heravi, M A Bigdeli, N Nahid Indian Journal of Chemistry, Section B. Organic Including Medicinal . 1999,第11期

机译：硅胶上吸附的硫酸：用二氢吡喃保护和脱保护醇的有效催化剂
2. Magnetic Fe3O4@silica sulfuric acid nanoparticles promoted regioselective protection/deprotection of alcohols with dihydropyran under solvent-free conditions [J] . Rajkumari Kalyani, Kalita Juri, Das Diparjun, RSC Advances . 2017,第89期

机译：磁Fe3O4 @二氧化硅硫酸纳米粒子促进了溶剂条件下用二氢吡喃的醇促进醇的区域选择性/脱保护
3. Magnetic Fe₃O₄@silica sulfuric acid nanoparticles promoted regioselective protection/deprotection of alcohols with dihydropyran under solvent-free conditions [J] . Kalyani Rajkumari, Juri Kalita, Diparjun Das, RSC Advances . 2017,第89期

机译：磁性Fe _{3 O _{4 @二氧化硅硫酸纳米颗粒在无溶剂条件下促进了二氢吡喃对醇的区域选择性保护/脱保护}}
4. Silica Gel Supported Dual Acidic Ionic Liquid as a Recyclable and Efficient Catalyst for Esterification and Acetalization Reactions [C] . Qiang Zhang, Hong Su, Jun Luo International Conference on Chemical Engineering and Advanced Materials . 2011

机译：硅胶负载双酸性离子液作为可回收和有效的酯化和缩醛化反应的催化剂
5. (31)P MAS NMR investigation of surface acidity on silica-alumina catalysts using adsorbed phosphines as new probes [D] . Hu, Bing 1997

机译：使用吸附的膦作为新探针的（31）P MAS NMR研究二氧化硅-氧化铝催化剂上的表面酸度
6. Efficient Deprotection of Phenol Methoxymethyl Ethers Using a Solid Acid Catalyst with Wells-Dawson Structure [O] . G. Romanelli, J.C. Autino, G. Baronetti, 2001

机译：使用具有Wells-Dawson结构的固体酸催化剂对苯酚甲氧基甲基醚进行高效脱保护
7. Electrogenerated Acid as an Efficient Catalyst for the Protection and Deprotection of Alcohols with Dihydropyran and Transesterification of Glyceride [O] . Sigeru Torii, Tsutomu Inokuchi, Kazumi Kondo, 1985

机译：电氢酸作为一种有效的催化剂，用于保护和脱保护与二氢吡喃和甘油酯酯交换的醇

Sulphuric acid adsorbed on silica gel: An efficient catalyst for the protection and deprotection of alcohols with dihydropyran

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