6-chloro-4-phenyl-3-(2,2,2-trifluoroethyl)-4-(trifluoromethyl)-3,4-dihydroquinazolin-2(1H)-one → 4-butyl-6-chloro-3-(2,2,2-trifluoroethyl)-4-(trifluoromethyl)-3,4-dihydroquinazolin-2(1H)-one
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[NH:8][C:7](=[O:12])[N:6]([CH2:13][C:14]([F:17])([F:16])[F:15])[C:5]2([C:22]1C=C[CH:25]=[CH:24][CH:23]=1)[C:18]([F:21])([F:20])[F:19].ClC1C=C2C(=CC=1)NC(=O)N(CC(F)(F)F)C2(O)C(F)(F)F.C([Mg]Cl)CCC>>[CH2:22]([C:5]1([C:18]([F:20])([F:21])[F:19])[C:4]2[C:9](=[CH:10][CH:11]=[C:2]([Cl:1])[CH:3]=2)[NH:8][C:7](=[O:12])[N:6]1[CH2:13][C:14]([F:15])([F:17])[F:16])[CH2:23][CH2:24][CH3:25]Participants
4
Reactant 3
Product 1
Procedure
Utilizing the general procedure outlined for 6-chloro-4-phenyl-3-(2,2,2-trifluoroethyl)-4-(trifluoromethyl)-3,4-dihydroquinazolin-2(1H)-one, 6-chloro-4-hydroxy-3-(2,2,2-trifluoroethyl)-4-(trifluoromethyl)-3,4-dihydroquinazolin-2(1H)-one (100 mg, 0.3 mmol) was reacted with 1.0M butyl magnesium chloride (1.0 ml, 1.0 mmol) to afford 4-butyl-6-chloro-3-(2,2,2-trifluoroethyl)-4-(trifluoromethyl)-3,4-dihydroquinazolin-2(1H)-one as an oil. 1H NMR (CD3OD, 400 MHz) δ 7.41 (s, 1H), 7.35 (dd, J=2.4 and 8.4 Hz, 1H), 6.9 (d, J=8.4 Hz, 1H), 4.55 (m, 1H), 4.29 (m, 1H), 2.50 (m, 1H), 2.22 (m, 1H), 1.40 (m, 2H), 1.24 (m, 1H), 1.13 (m, 1H), 0.90 (m, 3H). Exact Mass (Electrospray, M+H) Cal'd, 389.0850; Found, 389.0850.
Sources & evidence
- ORD record
- ord-c2a51b25039140b88743ba9846e0fcb1
- Source dataset
- uspto-grants-2010_06
- Patent number
- US07745452B2
Reaction notes
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