2-chloro-4-fluoro-1-isothiocyanatobenzene

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound was prepared following the procedure described for intermediate-2 using 2-chloro-4-fluoro aniline (5.0 g, 34.48 mmol), thiophosgene (3.95 g, 34.34 mmol), N-ethyl di-isopropyl amine (8.80 g, 68.00 mmol) to afford 3.0 g of the desired product. The title compound was prepared

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Following the general procedure for thiourea formation outlined in example 12, N,N-dimethyl-3-amino-6-chloro-2-hydroxybenzenesulfonamide (526 mg, 2.10 mmol) and 2-chloro-4-fluorophenylisothiocyanate (586 mg, 3.1 mmol) were coupled to form the desired thiourea (505 mg, 55%). EI-MS m/z 437.75 (M−).

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a solution of 2-chloro-4fluoroaniline (500 mg, 3.44 mmol) in a mixture of chloroform and water (10 mL/10 mL) at room temperature, thiophosgene (0.53 mL, 6.88 mmol) and sodium bicarbonate (1.09 g, 10.32 mmol) were added. The mixture was stirred at room temperature for 16 hours. The mixture was partitioned between chloroform and water. The combined organic layer was then concentrated to give the desired product (586 mg, 91%). 1H NMR (CDCl3) δ 6.98 (m, 1H), 7.20 (m, 2H). The mixture was partitioned between chloroform and water The combined organic layer was then concentrated