1-[3-(2-Alkylbenzofuranyl)]-2-phenylethylamines were prepared by reduction of 1-[3-(2-alkylbenzofuranyl)]-2-phenylethanone azines with amalgamated aluminum. Two isomeric azines were separated from products of reaction of 1-[3-(2-alkylbenzofuranyl)]-2-phenylethanones with hydrazine hydrate in ethanol solution. On the other hand, instead of desired amine, aziridine derivative was obtained by reduction of the mixture of (Z)- and (E)-1-[3-(2-butylbenzofuranyl)-2-(4-methoxyphenyl)]ethanone oximes with lithium aluminum hydride. The reduction of 1-[3-(2-butylbenzofuranyl)]-2-phenylethanone hydrazone with aluminium lead up to the corresponding imine.
Benzofuran systems. Synthesis and biological examination of 1-(3-benzofuranyl)-2-phenylethanones
作者:Halina Kwiecień、E. Baumann
DOI:10.1002/jhet.5570340533
日期:1997.9
Novel 1-(3-benzofuranyl)-2-phcnylethanones 4a-d have been prepared by acetylation of 2-alkylbenzo-furans 2a-c with phenylacetyl chlorides 3a-b. The methoxy derivatives 4b-d have been demethylated to the corresponding phenols 5b-d with pyridinium hydrochloride. An attempt to obtain the derivatives of 4d and 5a iodinated in the phenyl ring has been undertaken. The novel compounds have been characterized
Reductive Amination of 1-[3-(2- Alkylbenzofuranyl)]-2-phenylethanones. Synthesis of 1-[3- (2-Alkylbenzofuranyl)]-2-phenylethylamines
作者:Halina Kwiecién、Irena Bogdanska
DOI:10.3987/com-01-9201
日期:——
1-[3-(2-Alkylbenzofuranyl)]-2-phenylethylamines were prepared by reduction of 1-[3-(2-alkylbenzofuranyl)]-2-phenylethanone azines with amalgamated aluminum. Two isomeric azines were separated from products of reaction of 1-[3-(2-alkylbenzofuranyl)]-2-phenylethanones with hydrazine hydrate in ethanol solution. On the other hand, instead of desired amine, aziridine derivative was obtained by reduction of the mixture of (Z)- and (E)-1-[3-(2-butylbenzofuranyl)-2-(4-methoxyphenyl)]ethanone oximes with lithium aluminum hydride. The reduction of 1-[3-(2-butylbenzofuranyl)]-2-phenylethanone hydrazone with aluminium lead up to the corresponding imine.