The addition of methylborylene to acetylenes: Synthesis of 1,4-diboracyclohexa-2,5-dienes, and of a borirene and a diboretene derivative

doi:10.1016/S0277-5387(00)88107-3

Polyhedron

Volume 3, Issue 3, 1984, Pages 271-280

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Abstract

The synthesis of 1,4-dimethyl-2,3,5,6-tetra-n-alkyl-1,4-diboracyclohexa-2,5-dienes from the reaction of di-n-alkylacetylenes with the methylborylene-generating system 2C₈K/MeBBr₂ is described. A mechanism for these reactions is proposed. The addition of methylborylene to di-t-butylacetylene results in the formation of 1-methyl-2,3-di-t-butylborirene and of 1,3-dimethyl-2,4-di-t-butyl-1,3-diboretene.

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¹: Present address: Laboratory for Organic Chemistry, University of Amsterdam, Nieuwe Achtergracht 129, 1018 WS Amsterdam, The Netherlands.

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The addition of methylborylene to acetylenes: Synthesis of 1,4-diboracyclohexa-2,5-dienes, and of a borirene and a diboretene derivative

Abstract

Tetrahedron

J. Organometal. Chem.

J. Organometal. Chem.

J. Organometal. Chem.

Tetrahedron Letters

J. Organometal. Chem.

J. Organometal. Chem.

J. Organometal. Chem.

J. Organometal. Chem.

Angew. Chem.

J. Organometal. Chem.

J. Amer. Chem. Soc.

J. Organometal. Chem.

J. Org. Chem.

Angew. Chem.

Z. Anorg. Allgem. Chem.

Angew. Chem.

Angew. Chem.

J. Amer. Chem. Soc.