Pyrethroid intermediates and process

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

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564337, 570185, 570191, C07C 8730

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active

044737092

ABSTRACT:
A novel N,N,N-trimethyl-[1,1'-biphenyl]-2-methanaminium compound is subjected to a rearrangement reaction to give a 3-dimethylaminomethyl-2-methyl-[1,1'-biphenyl] compound which is then converted to the corresponding 3-halomethyl-2-methyl-[1,1'-biphenyl] compound. The halomethyl compound is an intermediate for pyrethroid and related insecticides having the alcohol moiety derived from a 2-methyl-[1,1'-biphenyl]-3-methanol.

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