Process of hydroboronizing alkenes and alkynes
AssigneeMetallgesellschaft Aktiengesellschaft
InventorsHeinrich Noth, Detlef Mannig
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Abstract
In a process for hydroboronizing alkenes or alkynes with catecholborane (1,3,2-benzodioxaborolane) optionally in the presence of an added organic solvent the reaction is catalyzed by a complex compound having one of the formulas: (I) RhCl(CO).sub.x [E(C.sub.6 H.sub.5).sub.3 ].sub.3-x' wherein "E" is arsenic or phosphorous and "x" equals 0 or 1, (II) [RhCl(alkene).sub.2 ].sub.2' (III) [(C.sub.6 H.sub.5).sub.3 P].sub.3 3 Ru(CO)ClH or (IV) [(C.sub.6 H.sub.5).sub.3 P].sub.3 RuCl.sub.2, particularly suitable catalysts are, e.g. tris (triphenylphosphine)rhodium(I) chloride and bis(cyclooctadiene)rhodium(I) chloride.
Claims7
A process for hydroboronizing an alkene or alkyne which comprises reacting at a temperature of 0.degree. to 40.degree. C. the alkene or alkyne with catecholborane in an organic solvent selected from the group which consists of benzene, toluene, hexane, and slightly coordinating ethers, in the presence of a complex catalytically effective compound selected from the group consisting of:
- (I) RhCl(CO).sub.x [E(C.sub.6 H.sub.5).sub.3 ].sub.3-x' wherein E is arsenic or phosphorous and x is 0 or 1,
- (II) [RhCl(alkene).sub.2 ].sub.2'
- (III) [(C.sub.6 H.sub.5).sub.3 P].sub.3 Ru(CO)ClH, and
- (IV) [(C.sub.6 H.sub.5).sub.3 P].sub.3 RuCl.sub.2.
Dependencies are inferred from the claim text.