Patent ID: 8871970

Claim:
A method for producing an organolithium compound, which comprises the step of reacting an aromatic compound or a halogenated unsaturated aliphatic compound and a lithiating agent at a temperature of −40° C. to 40° C. in the presence of a coordinating compound represented by formula (2): wherein, L 2a represents -O —, R 11 represents hydrogen atom or a C1-6 alkyl group, L 1a represents —OR 12 or —N(R 13 )R 14 , L 3a represents —OR 121 or —N(R 131 )R 141 , R 12 and R 121 each independently represents a C1-6 alkyl group, R 13 and R 131 each independently represents a methyl group, an ethyl group, or an n-propyl group, R 14 and R 141 each independently represents a C1-6 alkyl group (provided that, when L 2a is —O— and L 1a is —OR 12 , L 3a is —N(R 131 )R 141 and, when L 2a is —O— and L 3a is —OR 121 , L 1a is —N(R 13 )R 14 ), n 1a and n 2a each independently represents an integer of 1 to 3, R 1a , R 2a , R 3a , R 4a , R 5a , R 6a , R 7a , and R 8a each independently represents a hydrogen atom, a C1-6 alkyl group, or a phenyl group, and a ring may be formed between (R 1a or R 2a ) and (R 3a or R 4a ) or between (R 5a or R 6a ) and (R 7a or R 8a ).