. 2018 Jan 24;3(1):863–871. doi: 10.1021/acsomega.7b01688

Table 5. Hydrosilylation of the Internal Alkynes Employing Catalyst 18 [Yields and Isomeric Content (α/β Ratio)]^a^,^b.

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entry	alkyne	silane	yield and isomeric ratio at 100 °C/4 h
1	PhC≡CPh	Et₃SiH	92
2	(R⁶, R¹⁰ = Ph)	PhMe₂SiH	88
3	Me(CH₂)₂C≡C(CH₂)₂Me	Et₃SiH	86
4	(R⁶, R¹⁰ = Me(CH₂)₂)	PhMe₂SiH	91
5	PhC≡CMe	Et₃SiH	87 (81/19)
6	(R⁶ = Ph, R¹⁰ = Me)	PhMe₂SiH	94 (45/55)

Alkyne (5.0 × 10^–4 mol, 1 equiv), silane (5.0 × 10^–4 mol, 1 equiv), catalyst 18 (5.0 × 10^–7 mol); toluene (0.5 mL).

Yields of products were determined by ¹H NMR spectroscopy using 1,2-dimethoxyethane as the standard, whereas the isomeric content was determined on the basis of matching of chemical shifts against the authentic compounds.

Table 5. Hydrosilylation of the Internal Alkynes Employing Catalyst 18 [Yields and Isomeric Content (α/β Ratio)]a,b.

Table 5. Hydrosilylation of the Internal Alkynes Employing Catalyst 18 [Yields and Isomeric Content (α/β Ratio)]^a^,^b.