HCID 20827038, compound → HCID 22280131, compound
Reaction equation
COC(=O)COC1C=C(Cl)C(SC#N)=CC=1C.C[O:19][C:20](=[O:49])[CH2:21][O:22][C:23]1[CH:28]=[C:27]([Cl:29])[C:26]([S:30][CH2:31][C:32]2[CH:37]=[CH:36][C:35]([C:38]3[CH:43]=[CH:42][C:41]([C:44]([F:47])([F:46])[F:45])=[CH:40][CH:39]=3)=[CH:34][CH:33]=2)=[CH:25][C:24]=1[CH3:48]>>[Cl:29][C:27]1[C:26]([S:30][CH2:31][C:32]2[CH:33]=[CH:34][C:35]([C:38]3[CH:39]=[CH:40][C:41]([C:44]([F:45])([F:46])[F:47])=[CH:42][CH:43]=3)=[CH:36][CH:37]=2)=[CH:25][C:24]([CH3:48])=[C:23]([CH:28]=1)[O:22][CH2:21][C:20]([OH:49])=[O:19]Participants
Procedure
Preparation of 5-Chloro-2-methyl-4-thiocyanato-phenol (compound 20A) The title compound was prepared in a manner analogous to Example 1B from 5-chloro-2-methyl-phenol. 400 MHz 1H NMR (DMSO-d6) δ 10.60 (s, 1H), 7.54 (s, 1H), 6.98 (s, 1H), 2.07 (s, 3H). Step 2. Preparation of (5-Chloro-2-methyl-4-thiocyanato-phenoxy)-acetic acid methyl ester(compound 20B) The title compound was prepared from the product of Example 20A in a manner analogous to Example 1C. 400 MHz 1H NMR (DMSO-d6) δ 7.62 (s, 1H), 7.40 (s, 1H), 4.94 (s, 2H), 3.65 (s, 3H), 2.15 (s, 3H). Step 3. Preparation of (5-Chloro-4-mercapto-2-methyl-phenoxy)-acetic acid methyl ester (compound 20C) The title compound was prepared from (5-chloro-2-methyl-4-thiocyanato-phenoxy)-acetic acid methyl ester in a manner analogous to Example 1D. 400 MHz 1H NMR (DMSO-d6) δ 7.27 (s, 1H), 6.97 (s, 1H), 5.31 (s, 1H), 4.79 (s, 2H), 3.64 (s, 3H), 2.07 (s, 3H). Step 4. Preparation of [5-Chloro-2-methyl-4-(4′-trifluoromethyl-biphenyl-4-ylmethylsulfanyl)phenoxy]-acetic acid methyl ester (compound 20D) The title compound was prepared in the manner analogous to Example 1F using 3B and 20C. 400 MHz 1H NMR (DMSO-d6) δ 7.82 (d, 2H, J=8.3 Hz), 7.74 (d, 2H, J=8.3 Hz), 7.62 (d, 2H, J=8.3 Hz), 7.39 (d, 2H, J=8.3 Hz), 7.27 (s, 1H), 7.00 (s, 1H), 4.82 (s, 2H), 4.20 (s, 2H), 3.64 (s, 3H), 2.09 (s, 3H); MS m/z 480 (M+). Step 5. Preparation of [5-Chloro-2-methyl-4-(4′-trifluoromethyl-biphenyl-4-ylmethylsulfanyl)-phenoxy]-acetic acid (compound 20) The title compound was prepared in the manner analogous to Example 1 using 20D. mp 161-162° C.; 400 MHz 1H NMR (DMSO-d6) δ 7.83 (d, 2H, J=8.3 Hz), 7.74 (d, 2H, J=8.3 Hz), 7.62 (d, 2H, J=8.3 Hz), 7.51 (d, 2H, J=8.3 Hz), 7.26 (s, 1H), 6.95 (s, 1H), 4.69 (s, 2H), 4.20 (s, 2H), 2.08 (s, 3H); MS m/z 467 (M+1).
Sources & evidence
- ORD record
- ord-bbd61cdeb1c04a428904d0514690bc09
- Source dataset
- uspto-grants-2007_11
- Patent number
- USRE039916E1
Reaction notes
Loading…