METHOD FOR THE CATALYTIC REDUCTION OF ACID CHLORIDES AND IMIDOYL CHLORIDES
申请人:Nikonov Georgii
公开号:US20140228579A1
公开(公告)日:2014-08-14
The present application relates to methods for the catalytic reduction of acid chlorides and/or imidoyl chlorides. The methods comprise reacting the acid chloride or imidoyl chloride with a silane reducing agent in the presence of a catalyst such as [Cp(Pr
i
3
P)Ru(NCMe)
2
]
+
[PF
6
]
−
.
A mild, convenient, and inexpensive method for converting imines into amines: Tin-catalyzed reduction with polymethylhydrosiloxane (PMHS)
作者:Rosa M. Lopez、Gregory C. Fu
DOI:10.1016/s0040-4020(97)01020-x
日期:1997.12
protocol for reducing imines to amines. Thus, treatment of any of a wide array of imines with catalytic n-butyltris(2-ethylhexanoate)tin and stoichioimetric polymethylhydrosiloxane (PMHS) in ethanol at room temperature cleanly affords the desired secondary amine product. Alkyl bromides, alkynes, epoxides, esters, nitriles, and olefins are inert toward these reduction conditions, whereas aldehydes, ketones
Copper-Catalyzed Cross-Coupling of Imines, Acid Chlorides, and Organostannanes: A Multicomponent Synthesis of α-Substituted Amides
作者:Daniel A. Black、Bruce A. Arndtsen
DOI:10.1021/jo0503557
日期:2005.6.1
A copper-catalyzedcross-coupling of organotin reagents with imines and acid chlorides is reported. The reaction proceeds efficiently with a range of vinyl-, alkyl-, aryl- and heteroaryl-substituted organostannanes as well as a diverse set of imines of non-enolizable aldehydes. Use of chloroformates also allows for the formation of N-protected α-substituted amines. This chemistry has been applied to
A new application of chiral oxazaborolidines in asymmetric transformation, namely the hydrocyanation of imines, is described. The effect of protonation of these catalysts on the reactivity and enantioselectivity of hydrocyanations is studied. Significant increase in reaction rate is observed upon protonation of the catalysts, along with the reversal of the sense of stereoinduction.
Structure-Based Analysis and Optimization of a Highly Enantioselective Catalyst for the Strecker Reaction
作者:Petr Vachal、Eric N. Jacobsen
DOI:10.1021/ja027246j
日期:2002.8.1
asymmetric Streckerreaction catalyzed by a metal-free Schiff base catalyst was conducted. The active site of the catalyst, the relevant stereoisomer of the imine substrate, and the solution structure of the imine-catalyst complex were elucidated using a series of kinetics, structure-activity, and NMR experiments. An unusual bridging interaction between the imine and the urea hydrogens of the catalyst was