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Aldimines metal hydrides

Almost 40 years ago150, the enthalpy of hydride transfer to a collection of N-substituted aldimines R1CH=NR2 was reported and compared with the reaction enthalpy of the same (complex metal) hydride with the corresponding amine R CH2NHR2 reactions 65 and 66, respectively. [Pg.596]

The reactions of simple imine complexes are mainly restricted to hydrogenation or reduction by hydrides or by addition of nucleophiles such as alcohols. For example, complexes of macrocycles (18) undergo catalytic reduction to generate two chiral centres.66 Sodium borohydride has been used to reduce the imine complexes shown in equation (3).67 This technique enables convenient removal of the metal and the consequent synthesis of the reduced free macrocycles. Complexes of the aldimine (20) undergo nucleophilic addition of alcohols.49... [Pg.161]


See other pages where Aldimines metal hydrides is mentioned: [Pg.430]    [Pg.446]    [Pg.306]    [Pg.404]   
See also in sourсe #XX -- [ Pg.272 ]




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