CLIFTON, J. E.;COLLINS, I.;HALLETT, P.;HARTLEY, D.;LUNTS, L. H. C.;WICKS,+, J. MED. CHEM., 1982, 25, N 6, 670-679
作者:CLIFTON, J. E.、COLLINS, I.、HALLETT, P.、HARTLEY, D.、LUNTS, L. H. C.、WICKS,+
DOI:——
日期:——
Arylethanolamines derived from salicylamide with .alpha.- and .beta.-adrenoceptor blocking activities. Preparation of labetalol, its enantiomers and related salicylamides
作者:James E. Clifton、Ian Collins、Peter Hallett、David Hartley、Lawrence H. C. Lunts、Philip D. Wicks
DOI:10.1021/jm00348a013
日期:1982.6
A series of phenethanolamines (3) based on salicylamide has been prepared and shown to possess beta-adrenergic blocking properties. When the basic nitrogen atom was substituted by some aralkyl groups, the compounds also blocked alpha-adrenoceptors. The 1-methyl-3-phenylpropyl derivative labetalol (34) is antihypertensive in animals and man, and syntheses of its four stereoisomers are described. The
B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>-Catalyzed Michael Reactions: Aromatic C–H as Nucleophiles
作者:Wu Li、Thomas Werner
DOI:10.1021/acs.orglett.7b00720
日期:2017.5.19
The Michael reaction is a widely used reaction for the C–C coupling of electron-poor olefins and C(sp3)–H pronucleophiles. Herein we report the Michael reaction between alkenes and aromatic as well as heteroaromatic compounds as aromatic C(sp2)–H nucleophiles under mild conditions. The reaction is catalyzed by readily available Lewisacidic B(C6F5)3 and proceeds with high regioselectivity for a wide
迈克尔反应是贫电子烯烃与C(sp 3)-H前亲核试剂的C-C偶联反应中广泛使用的反应。在这里,我们报道了在温和条件下烯烃与芳香族以及杂芳香族化合物(如芳香族C(sp 2)–H亲核体)之间的迈克尔反应。该反应被易得的路易斯酸性B(C 6 F 5)3催化,并在较大的底物范围内以高区域选择性进行。