Factor F430-Like Catalysis of Ni(tmtaa) (tmtaa = Dianion of 6,8,15,17-Tetramethyl-5,14-dihydrodibenzo[b,i][1,4,8,11]tetraazacyclotetradecine) for Reductive Dehalogenation of Alkyl Halides
- 1 March 1994
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 67 (3) , 705-709
- https://doi.org/10.1246/bcsj.67.705
Abstract
Ni(tmtaa) efficiently catalyzes the reductive dehalogenation of alkyl halide, yielding alkane with either NaBH4 or NaBH(OMe)3 under mild condition. This system is considered to be a model of factor F430, the active center of the methyl coenzyme M reductase. Deuterium incorporation into the alkane suggests that the reaction involves not only an electron transfer, but also the nucleophilic substitution of a halide. The ESR spectrum of Ni(tmtaa)/NaBH4 shows the formation of the NiI species, which is probably a catalytic-active species.Keywords
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