所有图片(1)
别名:
(4-Methylphenyl)sulfonyl 4-methylbenzenesulfonate, 4-Methylbenzenesulfonic acid anhydride, 4-Methylbenzenesulfonic anhydride, 4-Methylphenylsulfonic anhydride, 4-Toluenesulfonic acid anhydride, Toluene-4-sulfonic acid ahnydride, p-Toluenesulfonic acid anhydride, p-Toluenesulfonyl anhydride, p-Tolylsulfonyl 4-methylbenzenesulfonate
线性分子式:
(CH3C6H4SO2)2O
CAS号:
分子量:
326.39
Beilstein:
2223702
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22
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质量水平
检测方案
97%
形式
solid
mp
121-127 °C (lit.)
SMILES字符串
Cc1ccc(cc1)S(=O)(=O)OS(=O)(=O)c2ccc(C)cc2
InChI
1S/C14H14O5S2/c1-11-3-7-13(8-4-11)20(15,16)19-21(17,18)14-9-5-12(2)6-10-14/h3-10H,1-2H3
InChI key
PDVFSPNIEOYOQL-UHFFFAOYSA-N
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一般描述
p -甲苯磺酸酐作为亲电物种在原位活化 2-脱氧-糖半缩醛 ，与亲核受体发生立体选择性反应得到 β-异构体 。
应用
以 p -甲苯磺酸酐为试剂，研究了钯催化的烯丙基醇与 n-丙烯酸丁酯的烯丙基烯化反应 。
警示用语：
Danger
危险声明
危险分类
Eye Dam. 1 - Skin Corr. 1B
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
John Paul Issa et al.
Journal of the American Chemical Society, 136(15), 5740-5744 (2014-03-29)
The efficient and stereoselective construction of glycosidic linkages remains one of the most formidable challenges in organic chemistry. This is especially true in cases such as β-linked deoxy-sugars, where the outcome of the reaction cannot be controlled using the stereochemical
Naofumi Tsukada et al.
Chemical communications (Cambridge, England), (19)(19), 2404-2405 (2003-11-01)
Various allylic alcohols reacted with n-butyl acrylate in the presence of p-toluenesulfonic anhydride and palladium catalysts to yield the corresponding n-butyl 2,5-dienoates with high regioselectivity.
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