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Publication of MD2985G2publicationCriticalpatent/MD2985G2/ro
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Cosmetics
(AREA)
Abstract
Invenţia se referă la procedeele de obţinere a izotiocianatochalconelor, care pot fi utilizate în calitate de precursori pentru sinteza unor chalcone de uz medicinal sau cosmetic.Procedeul revendicat include condensarea l,l-dimetil-3-(3- sau 4-acetilfenil)tioureelor cu aldehide aromatice substituite, cu obţinerea N,N-dimetiltioureidochalconelor care se dezaminează într-un solvent inert la încălzire cu acizi minerali (H2SO4, HCl în dioxan) sau cu anhidridă acetică (în benzen sau toluen), luaţi, respectiv, în raport echimolar.
MDA20040244A2004-10-042004-10-04Procedeu de obţinere a izotiocianatochalconelor
MD2985G2
(ro)
M. Dzurilla, P. Kristian. Isothiocyanates and their syntetic producers. Collection of Czechoslovak Chemical Communications, 1969, V.35, N2, p. 145-151*
W. Davey, J. R. Gwilt. Chalcones and related compounds. Journal of chemical society. Part 1. 1957, p. 73-78*
Verfahren zur herstellung von salzen von 4-ää5-ä(cyclopropylamino)carbonylü-2-methylphenylüaminoü-5-methyl-n-propylpyrroloä2,1-füä1,2,4ütriazin-6-carboxamid und damit hergestellte neue stabile formen
Compuestos derivados de dihidrofenantridin-sulfonamidas sustituidas, sus sales; procedimiento de preparacion; composicion farmaceutica; compuestos intermediarios; y su uso en el tratamiento de la diabetes tipo ii, alzheimer, demencia senil, asma, col