Henry condensation under high pressure 2. Effect of aromatic aldehyde type and pressure on the yield of ?-nitrostyrenes and secondary processes
摘要:
Condensation of aromatic aldehydes (I)-(XX) with EtNO2 and n-PrNO2 in AcOH in the presence of AcONH4 or i-BuNH2 gives primarily omega-nitrostyrenes (Ia, b)-(XXa, b) and small quantities of nitriles (Ic)-(XXc), oximes (Id)-(XXd), and ketones (Ie, f)-(XXe, f). The yields of (Ia, b)-(XXa, b) at P = 1 atm are higher for acceptor substituents on the aromatic ring whereas at P = 10 kbar, they are higher for donor substituents. High pressures suppress the formation of (Ic-f)-(XXc-f) and the Z-isomers of (Ia, b)-(XXa, b). The high pressure technique is especially useful in the preparation of donor-substituted (Ia, b)-(XXa, b) which are intermediates in the synthesis of the psychotropic beta-phenylethylamines.
[EN] PROTEIN TYROSINE PHOSPHATASE MODULATORS<br/>[FR] MODULATEURS DE LA PROTÉINE TYROSINE PHOSPHATASE
申请人:BIODIEM LTD
公开号:WO2008061308A1
公开(公告)日:2008-05-29
[EN] The present invention relates to protein tyrosine phosphatase (PTP) modulators, in particular PTP inhibitors and their use in the treatment or prophylaxis of disorders modulated by PTP such as cellular proliferation disorders; autoimmune diseases for example diabetes or inflammatory diseases; infections caused by viruses using PTPases for infectivity; angiogenesis mediated disorders; bone disorders; and vascular tone, vascular permeability or VEGF mediated disorders. [FR] La présente invention concerne des modulateurs de la protéine tyrosine phosphatase (PTP), et en particulier des inhibiteurs de la PTP, ainsi que leur utilisation dans le traitement ou la prophylaxie de troubles modulés par la PTP, tels que les troubles suivants : troubles de la prolifération cellulaire ; maladies auto-immunes, par exemple diabète ou maladies inflammatoires ; infections provoquées par des virus utilisant la PTP pour l'infectivité ; troubles induits par l'angiogenèse ; troubles osseux ; et troubles du tonus vasculaire, troubles de la perméabilité vasculaire ou troubles induits par le facteur de croissance endothélial vasculaire.
Henry condensation under high pressure 2. Effect of aromatic aldehyde type and pressure on the yield of ?-nitrostyrenes and secondary processes
作者:N. E. Agafonov、I. P. Sedishev、A. V. Dudin、A. A. Kutin、G. A. Stashina、V. M. Zhulin
DOI:10.1007/bf00965433
日期:1991.2
Condensation of aromatic aldehydes (I)-(XX) with EtNO2 and n-PrNO2 in AcOH in the presence of AcONH4 or i-BuNH2 gives primarily omega-nitrostyrenes (Ia, b)-(XXa, b) and small quantities of nitriles (Ic)-(XXc), oximes (Id)-(XXd), and ketones (Ie, f)-(XXe, f). The yields of (Ia, b)-(XXa, b) at P = 1 atm are higher for acceptor substituents on the aromatic ring whereas at P = 10 kbar, they are higher for donor substituents. High pressures suppress the formation of (Ic-f)-(XXc-f) and the Z-isomers of (Ia, b)-(XXa, b). The high pressure technique is especially useful in the preparation of donor-substituted (Ia, b)-(XXa, b) which are intermediates in the synthesis of the psychotropic beta-phenylethylamines.
MOURAD, M. S.;VARMA, RAJENDER, S.;KABALKA, G. W., J. ORG. CHEM., 1985, 50, N 1, 133-135
作者:MOURAD, M. S.、VARMA, RAJENDER, S.、KABALKA, G. W.