Lewis Acid

Some articles on lewis acid, lewis, acids, acid:

Aluminium Bromide - Reactions
... Al2Br6 dissociates readily to give the strong Lewis acid, AlBr3 ... Consistent with its Lewis acidic character, water hydrolizes Al2Br6 with evolution of HBr and formation of Al-OH-Br species ... it also reacts quickly with alcohols and carboxylic acids, although less vigorously than with water ...
Metal-organic Framework - MOFs For Catalysis - Design of MOFs For Catalysis - Catalysis With Functional Struts
... Kaskel and co-workers showed that these Lewis acid sites could catalyze the cyanosilylation of benzaldehyde or acetone ... of the anhydrous version of HKUST-1 as an acid catalyst ... for opportunistic catalysis at defect sites (such as exposed carboxylic acids), they examined three reactions isomerization of a-pinene oxide, cyclization of citronellal, and rearrangement of a-bromoacetals ...
Lewis Acids And Bases
... The term Lewis acid refers to a definition of acid published by Gilbert N ... Lewis in 1923, specifically An acid substance is one which can employ an electron lone pair from another molecule in completing the stable group of one of its own atoms ... Thus, H+ is a Lewis acid, since it can accept a lone pair, completing its stable form, which requires two electrons ...
Lewis Acid - Catalyzed Ene Reactions - Reaction Conditions
... the alkyl group does not lead to side reactions, catalytic amounts of Lewis acid are sufficient for many ene reactions with reactive enophiles ... Nonetheless, the amount of Lewis acid can widely vary, as it largely depends on the relative basicity of the enophile and the ene adduct ... as solvents polar solvents such as ethers are not suitable, as they would complex to the Lewis acid, rendering the catalyst inactive ...