331-20-4Relevant academic research and scientific papers
Visible-Light-Promoted Diboron-Mediated Transfer Hydrogenation of Azobenzenes to Hydrazobenzenes
Song, Menghui,Zhou, Hongyan,Wang, Ganggang,Ma, Ben,Jiang, Yajing,Yang, Jingya,Huo, Congde,Wang, Xi-Cun
, p. 4804 - 4811 (2021/04/06)
A visible-light-promoted transfer hydrogenation of azobenzenes has been developed. In the presence of B2pin2 and upon visible-light irradiation, the reactions proceeded smoothly in methanol at ambient temperature. The azobenzenes with diverse functional groups have been reduced to the corresponding hydrazobenzenes with a yield of up to 96%. Preliminary mechanistic studies indicated that the hydrogen atom comes from the solvent and the transformation is achieved through a radical pathway.
NONCATALEPTIC NEUROLEPTIC AGENTS: 4-SUBSTITUTED 1-(2-CHLORO-7-FLUORO-10,11-DIHYDRODIBENZOTHIEPIN-10-YL)PIPERAZINES AND RELATED COMPOUNDS
Protiva, Miroslav,Jilek, Jiri,Cervena, Irena,Pomykacek, Josef,Bartl, Vaclav,et al.
, p. 2598 - 2616 (2007/10/02)
1-(2-chloro-7-fluoro-10,11-dihydrodibenzothiepin-10-yl)piperazine (VI) was used to prepare a new group of potential noncataleptic neuroleptic agents.Addition of acrylonitrile and acrylamide gave the nitrile VII and the amide X.Further transformations of the nitrile VII led to the phenone VIII and the amidoxime IX.Alkylations of compound VI with 2-(2-chloroethyl)-1,3-dioxolane and 2-(2-chloroethyl)-1,3-dioxane resulted in the cyclic acetals XII and XIII.Several improvements of the synthesis of compound VI are reported.Out of the compounds prepared, the amide X (methanesulfonate VUFB-15496) proved most interesting: it has low acu te toxicity, is noncataleptic and has significantly higher antidopaminergic activity than clozapine.
