Metal carbonyls catalysed reaction of isocyanates with aldehydes
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چکیده
منابع مشابه
Reaction of glutathione with conjugated carbonyls.
1. GSH reacts with conjugated carbonyls according to the equation: GSH+R-CH=CH-COR in equilibrium R-CH(SG)-CH2-COR. The forward reaction follows second order, the reverse reaction first order kinetics. It is assumed that this reaction reflects best the ability of conjugated carbonyls to inactivate SH groups in biological systems. 2. The rate of forward reaction increases with pH approx. paralle...
متن کاملRhodium-catalysed addition reaction of aryl- and alkenylboronic acids to isocyanates.
The addition reaction of aryl- and alkenylboronic acids to isocyanates is catalysed by a rhodium(I) complex, affording secondary amides under mild conditions.
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The direct synthesis of amides by insertion into the C-H bond of aldehydes is shown to be a practical procedure through application of cheap, readily available catalysts generated in situ from copper(i) halides and pyridine.
متن کاملMagnesium-catalysed hydroboration of aldehydes and ketones.
The heteroleptic magnesium alkyl complex [CH{C(Me)NAr}(2)Mg(n)Bu] (Ar = 2,6-(i)Pr(2)C(6)H(3)) is reported as a highly efficient pre-catalyst for the hydroboration of aldehydes and ketones with pinacolborane.
متن کاملHeavier group 2 element-catalysed hydroamination of isocyanates.
The heteroleptic calcium amides [{ArNC(Me)CHC(Me)NAr}Ca(NR(2))(THF)] (Ar=2,6-di-iso-propylphenyl, R=SiMe(3), Ph) and the homoleptic heavier alkaline earth amides, [M{N(SiMe(3))(2)}(2)] (M=Ca, Sr and Ba) are reported as pre-catalysts for the hydroamination of isocyanates.
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ژورنال
عنوان ژورنال: Journal of Molecular Catalysis
سال: 1981
ISSN: 0304-5102
DOI: 10.1016/0304-5102(81)85066-3