A selective dehydrogenative coupling reaction occurs in the presence of LiAlH4 as a catalyst between 1-hexyne and SiH4 to give hexynylsilane and dihexynylsilane. A reaction mechanism involving SiH4 and the alkynylaluminate anion, formed by the interaction between LiAlH4 and the alkyne, is proposed.
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Itoh et al. (1997) studied this question.
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