Diazonium Salts
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Síntese de organo-seleno aminas e sua resolução cinética via reação de acetilação enantiosseletiva mediada por lipases / Synthesis of organoselenium amines and their kinetic resolution by enantioselective acetylation mediated by lipases
In this work, we have developed a chemoenzymatic method to enantiomerically synthesize enriched organoselenium amines (1-(2, 3 or 4 -(ethylselanyl)phenyl)ethanamine) and amides (N-(1-(2, 3 or 4-(ethylselanyl)phenyl)ethyl)acetamide). Initially, the organoselenium amines, in the racemic form, were synthesized from ortho-, meta- and para- aminoacetophenones. Th
Publicado em: 2008
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2. Reação de arilação de Heck regio e estereosseletiva da 3-desidroprolina com sais de arildiazonio : aplicação na sintese total de analogos neuroexcitatorios do acido acromelico / Regio and stereoselective Heck arylation of 3-dehydroprolines with aryldiazonium salts. Total synthesis of the neuroexcitatory acromelic acid analogues
The Heck arylation of chiral 3-dehydroprolines using various aryldiazonium salt resulted in the formation of a series of 4-aryl-dehydroprolines of potential biological interest. The application of aryldiazonium salt in this arylation reaction offers several advantages over traditional Heck reactions such as mild reactions conditions of phosphine-free conditi
Publicado em: 2006
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3. Synthesis and structural study of azo-enaminones. / Síntese e estudo estrutural de azo-enaminonas.
Azoenaminones are a particular class of enaminones obtained by incorporation of azo group (N=N), on into a conjugated system N-C=C-C=O of enaminone moiety. Studies concerning of this class of organic compounds are still scarce this and of their properties and reactional behavior. Nowadays there are a few numbers this and of compounds synthesized, but the rec
Publicado em: 2006
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4. Estudo da reação de arilação de Heck de enecarbamatos, enamidas e enoleteres endociclicos utilizando sais de diazonio
The Heck arylation of olefins with aryltriflates and arylhalides is a well-established synthetic methodology for C-C bond formation. The Heck arylation employing diazonium salts (Heck-Matsuda reaction) is a much less explored methodology but offers a number of advantages over the traditional Heck protocol. These advantages comprise its mildness, shorter reac
Publicado em: 2003