Laura J. SewellDepartment of ChemistryAdrian B. ChaplinDepartment of ChemistryAndrew S. WellerDepartment of ChemistryDalton Transactions: An International Journal of Inorganic Chemistry
ahydroboration‐oxidation reaction.In this reaction, a disubstituted boron hydride is added across the carbon‐carbon double bond of an alkene. The resulting organoborane compound is oxidized to an alcohol by reaction with hydrogen peroxide in a basic media, such as aqueous sodium hydroxide solution...
& Lu, Z. Asymmetric remote C-H borylation of internal alkenes via alkene isomerization. Nat. Commun. 9, 3939 (2018). PubMed PubMed Central Google Scholar Gao, D.-W. et al. Cascade CuH-catalysed conversion of alkynes into enantioenriched 1,1-disubstituted products. Nat. Catal. 3, 23–...
The Hydroboration follows the syn-addition of the boron molecule to an alkene. Four centered cyclic transition state follows the syn addition of the BH3 molecule across the alkene and the carbon atom gets partially positive charged. Usually, boron is added selectively to the less hindered carbon ...
Statement-1 Hydration of alkenes may give more than one type of alcohol Statement -2 Carbocation intermediate may show rearrangement View Solution Hydration reaction of alkene is catalyzed by dilute acid. Selection of acid is important . Conjugate base of the acid should not interfere in the reacti...
ChemInformPereira Schubert,Srebnik Morris.A study of hydroboration of alkenes and alkynes with pinacolborane catalyzed by transition metals.Tetrahedron Lett. 1996... S.,PEREIRA,M.,... - 《Cheminform》 被引量: 170发表: 1996年 A cobalt-catalyzed alkene hydroboration with pinacolborane. An extremely ...
This Review describes the use of first-row transition metal complexes in catalytic alkene hydrosilylation and hydroboration. Defining advances in the field are covered, noting the chemistry that is unique to first-row transition metals and the design features that enable them to exhibit precious-metal...
What alkene can be used to prepare the following alcohol as the exclusive product of a two-step hydroboration-oxidation sequence? Hydroboration-Oxidation:There are two steps in hydroboration-oxidation: The formation of the alkyl borane from an alkene...
Reductive functionalization of the C=O unit in carboxylic acids, carbonic acid derivatives, and ultimately in carbon dioxide itself is a challenging task of key importance for the synthesis of value-added chemicals. In particular, it can open novel pathw
Asymmetric hydroboration 专利名称：Asymmetric hydroboration 发明人：JOHN MICHAEL BROWN 申请号：AU8112694 申请日：19941109 公开号：AU8112694A 公开日：19950529 专利内容由知识产权出版社提供 摘要：A process for the reaction of an alkene, allene or alkyne with a borane in the presence of a catalyst to ...