A highly efficient protocol for regioselective ring-opening of epoxides with alcohols, water, acetic acid, and acetic anhydride catalyzed by SbF<sub>3</sub>
作者:Behzad Zeynizadeh、Masumeh Gilanizadeh、Farkhondeh Mohammad Aminzadeh
DOI:10.1080/10426507.2015.1135439
日期:2016.7.2
the corresponding β-alkoxy, β-acetoxy alcohols, and 1,2-diols in high to excellent yields. This study also represents a convenient synthesis of vic-diacetates from ring-opening of epoxides with aceticanhydride.
Aerobic Acetoxyhydroxylation of Alkenes Co-catalyzed by Organic Nitrite and Palladium
作者:Xian-Min Chen、Xiao-Shan Ning、Yan-Biao Kang
DOI:10.1021/acs.orglett.6b02743
日期:2016.10.21
An aerobic acetoxyhydroxylation of alkenes cooperatively catalyzed by organic nitrite and palladium at room temperature using clean and cheap air as the sole oxidant has been developed. Various vicinal diols, diacetoxyalkanes, and dihalogenoalkanes have been synthesized. The gram-scale synthesis has also been approached. Vicinal difluorination and dichlorolation products have also been achieved via
Aerobic Oxidation of Alkenes to Esters of Vicinal Diols with a<i>syn</i>-Configuration Catalyzed by I<sub>2</sub>and the H<sub>5</sub>PV<sub>2</sub>Mo<sub>10</sub>O<sub>40</sub>Polyoxometalate
作者:Ronny Neumann、Olena Branytska
DOI:10.1055/s-2005-917069
日期:——
A new method for the synthesis of vicinal diols fromalkenes has been developed. Reaction of molecular iodine in the presence of a polyoxometalate as oxidation catalyst under aerobic conditions in acetic acid solvent leads to the oxidative iodoacetoxylation of an alkene, i.e. formation of a 1,2-iodoacetate. Further in situ substitution of the iodide by water yields the 1,2-diol monoacetate with a predominantly
ZEOLITE CATALYZED RING OPENING OF EPOXIDES TO ACETYLATED DIOLS WITH ACETIC ANHYDRIDE<sup>*</sup>
作者:P. Ramesh、V. L. Niranjan Reddy、D. Venugopal、M. Subrahmanyam、Y. Venkateswarlu
DOI:10.1081/scc-100105384
日期:2001.1.1
HY Zeolite is found to be a versatile catalyst for opening of epoxides to the corresponding acetylated 1,2-Diols with acetic anhydride in good yields. *IICT Communication No. 4521.
发现 HY 沸石是一种通用催化剂,用于将环氧化物以良好的收率与乙酸酐开环成相应的乙酰化 1,2-二醇。*IICT 通讯第 4521 号。