22-01-2015 дата публикации
Номер: US20150025276A1
A method for producing an organolithium compound includes the step of reacting an aromatic compound or a halogenated unsaturated aliphatic compound and a lithiating agent in the presence of a coordinating compound containing three or more elements having a coordinating ability in a molecule, at least one thereof being a nitrogen element, or a coordinating compound containing three or more oxygen elements having a coordinating ability in a molecule, at least one of the groups containing the oxygen elements having a coordinating ability being a tertiary alkoxy group, at a temperature of −40° C. to 40° C. 1. A ligand represented by formula (3):wherein, in formula (3),{'sup': 2b', '21, 'sub': '2', 'Lrepresents —O— or —N(—CH—R)—,'}{'sup': '21', 'Rrepresents a hydrogen atom or a C1-6 alkyl group,'}{'sup': 1b', '22', '23', '24, 'Lrepresents —ORor —N(R)R,'}{'sup': 3b', '221', '231', '241, 'Lrepresents —ORor —N(R)R,'}{'sup': 22', '221, 'Rand Reach, independently, represents a C1-6 alkyl group,'}{'sup': 23', '231, 'Rand Reach, independently, represents a methyl group, an ethyl group, or an n-propyl group,'}{'sup': 24', '241', '2b', '1b', '22', '3b', '231', '241', '2b', '3b', '221', '1b', '23', '24, 'Rand Reach, independently, represents a C1-6 alkyl group (provided that when Lis —O— and Lis —OR, Lis —N(R)Rand, when Lis —O— and Lis —OR, Lis —N(R)R),'}{'sup': 1b', '2b, 'nand neach, independently, represents an integer of 1 to 3,'}{'sup': 1b', '2b, 'Rand Rrepresent a C1-6 alkyl group,'}{'sup': 3b', '4b', '5b', '6b', '7b', '8b', '2b', '1b', '3b', '1b', '2b', '1b', '2b', '3b', '4b', '5b', '6b', '7b', '8b, 'sub': 3', '3', '3, 'R, R, R, R, Rand Reach, independently, represents a hydrogen atom or a C1-6 alkyl group (provided that when Lis —N—CH, Land Lis —N(CH)CHand nand nare 1, R, R, R, R, R, R, Rand Rare not simultaneously methyl groups) and'}{'sup': 1b', '2b', '3b', '4b', '5b', '6b', '7b', '8b, 'a ring may be formed between (Ror R) and (Ror R) or between (Ror R) and (Ror R).'} The ...
Подробнее