4-Chloro-2-fluorobenzoic acid → (8-Chloro-1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester
Reaction equation
[CH2:1]([O:3][P:4]([CH:9]=[C:10]1[NH:16][CH2:15][CH2:14][N:13]([CH3:17])[C:12]2[CH:18]=[CH:19][CH:20]=[CH:21][C:11]1=2)(=[O:8])[O:5][CH2:6][CH3:7])[CH3:2].[Cl:22]C1C=CC(C(O)=O)=C(F)C=1>>[CH2:1]([O:3][P:4]([CH:9]=[C:10]1[NH:16][CH2:15][CH2:14][N:13]([CH3:17])[C:12]2[CH:18]=[C:19]([Cl:22])[CH:20]=[CH:21][C:11]1=2)(=[O:8])[O:5][CH2:6][CH3:7])[CH3:2]Participants
3
Procedure
(8-chloro-1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester was prepared in an analogous fashion to (1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester, as described in Example 1 by replacing 2-fluorobenzoic acid with 4-chloro-2-fluorobenzoic acid.