Reactions of enaminones and related compounds with N,N-dimethylacetamide dimethyl acetal. A simple one-pot metal-free synthesis of polysubstituted benzene derivatives
Herein a simple one-pot metal-free synthesis of alkyl-, aryl-, heteroaryl- and alkoxycarbonyl substituted 1,3-bis(dimethylamino)benzene derivatives is described. The products were prepared from the corresponding methyl ketones or compounds with an α-methylene group in regard to the carbonyl group, using N,N-dimethylacetamide dimethyl acetal (DMADMA) as the reagent.
Zur Reaktionsweise von Enaminen mit Cyclopropenonen V. Einsatz von ?-Carbonyl-enaminen
作者:Vanda Bilinski、Andr� S. Dreiding
DOI:10.1002/hlca.19740570827
日期:——
Diphenylcyclopropenone (10) was heated with five different β-carbonyl-enamines, namely 4-pyrrolidino-pent-3 E-en-2-one (12), 4-dimethylamino-pent-3E-en-2-one (13), 4-dimethylamino-but-E-en-2-one (14), 3-dimethylamino-1-phenyl-prop-E-en-1-one (15) and ethyl 3-pyrrolidino-isocrotonate (16). The resulting reactions were more sluggish than those of 10 with ordinary enamines. The main reaction (between
β-Aminoenone als Komponenten in der Mannich-Reaktion
作者:Hans Möhrle、Hans Walter Reinhardt
DOI:10.1002/ardp.19843170212
日期:——
4‐Dimethylamino‐3‐penten‐2‐on geht mit Formaldehyd und sekundären Aminen keine Mannichreaktion ein, wohl aber mit N,N‐Dimethylmethyleniminiumchlorid, wobei das N‐tertiäre Enaminon als vinyloges Keton reagiert.
4-Dimethylamino-3-penten-2-one 不与甲醛和仲胺发生曼尼希反应,但与 N, N-二甲基亚甲基亚胺氯化物发生曼尼希反应,其中 N-叔烯胺酮作为乙烯基酮反应。
Hypervalent Iodine(III) Reagent Mediated Regioselective Cycloaddition of Aldoximes with Enaminones
作者:Akira Yoshimura、Melissa E. Jarvi、Michael T. Shea、Cody L. Makitalo、Gregory T. Rohde、Mekhman S. Yusubov、Akio Saito、Viktor V. Zhdankin
DOI:10.1002/ejoc.201901258
日期:2019.10.24
Hypervalentiodine(III) reagentmediated regioselective cycloadditions of aldoximes with enaminones producing the 3,4‐ or 3,4,5‐substituted isoxazole derivatives have been developed.
Dipeptidyl peptidase IV inhibitors and their uses for lowering blood pressure levels
申请人:Pospisilik J. Andrew
公开号:US20070207946A1
公开(公告)日:2007-09-06
The present invention provides new uses of DPIV-inhibitors of the present invention, and their corresponding pharmaceutically acceptable acid addition salt forms, for lowering blood pressure levels.