Alkenes hydrides

Deuterium-labeled organosilicon hydride alkene to alkane reductions, 34 disubstituted alkenes, 37-38 alkyl halide reduction, 29-31 Diastereoselectivity, ketone-alcohol reduction, 76-79... 

Ru11 hydride alkene complexes are covered in Section 45.10, but other Ru11 P, As or Sb donor... 

The IrmTp fragment also allows the attainment of equilibrium mixture of hydride alkylidene XI and hydride alkene XII species shown in Fig. 2.111.462... 

A chelating acyl-hydride-alkene complex is suggested as the key intermediate allowing C— H bond formation only within a certain complex conformation which leads to the cu-product58. 

Main Group alkyls can also (3-eliminate (e.g., Eq. 3.2), but this usually happens much more slowly. The reason for this difference is believed to be the greater ability of d-block metals to stabilize the transition states involved. We shall see shortly how in rare cases stable complexes exist in which transition metals stabilize what appear to be intermediate forms between simple alkyls and the hydride alkene product of (3 elimination. 

The thermal reaction of the trispyrazolylborate complex [Tp IrPh2(N2)] 526 with 2-ethylphenol produces the hydride alkylidene 527 which exhibits a thermoneutral equilibrium (20 1) with the hydride alkene 528 (Scheme... 

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