Iridium-catalyzed N-alkylation of diamines with glycerol
摘要:
N-alkylation of 1,2-diaminocyclohexanes with glycerol in water, catalyzed by [Cp*IrCl2](2), gives a mixture of 2-methyldecahydroquinoxaline and 2-(1-hydroxyethyl)-3a,4,5,6,7,7a-hexahydro-1H-benzimidazoles. (C) 2013 Elsevier B.V. All rights reserved.
Methods of treating anxiety by administering a substituted quinolone
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:US11273168B2
公开(公告)日:2022-03-15
A heterocyclic compound represented by the general formula (1) or a salt thereof:
wherein m, l, and n respectively represent an integer of 1 or 2; X represents —O— or —CH2—;
R1 represents hydrogen, a lower alkyl group, a hydroxy-lower alkyl group, a protecting group, or a tri-lower alkylsilyloxy-lower alkyl group;
R2 and R3, which are the same or different, each independently represent hydrogen or a lower alkyl group; or R2 and R3 are bonded to form a cyclo-C3-C8 alkyl group; and
R4 represents an aromatic group or a heterocyclic group, wherein
the aromatic or heterocyclic group may have one or more arbitrary substituent(s).
N-alkylation of 1,2-diaminocyclohexanes with glycerol in water, catalyzed by [Cp*IrCl2](2), gives a mixture of 2-methyldecahydroquinoxaline and 2-(1-hydroxyethyl)-3a,4,5,6,7,7a-hexahydro-1H-benzimidazoles. (C) 2013 Elsevier B.V. All rights reserved.