Ru‐Catalyzed Switchable
<i>N</i>
‐Hydroxyethylation and
<i>N</i>
‐Acetonylation with Crude Glycerol
作者:Zhuo Xin、Le Jia、Yuxing Huang、Chen‐Xia Du、Yuehui Li
DOI:10.1002/cssc.201903151
日期:2020.4.21
Highly efficient Ru-catalyzed selective C-C or C-O bond cleavage of polyols (e.g., crude glycerol) for N-hydroxyethylation or N-acetonylation of amines was achieved through the hydrogen-borrowing approach. A variety of amines were transformed to the desired amino alcohols/ketones in moderate-to-excellent yields, opening up new avenues for generation of oxygenated pharmaceuticals and fine chemicals
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:——
US4154761A
申请人:——
公开号:US4154761A
公开(公告)日:1979-05-15
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