The chemical industry reduces the impact on the environment during synthesis 2252-44-0, name is 3-(Trifluoromethoxy)bromobenzene, I believe this compound will play a more active role in future production and life. 2252-44-0
EXAMPLE 92 (RR,SS)-3-(2-methoxyphenyl)-2-methyl-3-(1-naphthyl)-2-({4-[3-(trifluoromethoxy)phenyl]piperazin-1-yl}carbonyl)propanenitrile (RR,SS)-3-(2-methoxyphenyl)-2-methyl-3-(1-naphthyl)-2-(piperazin-1-ylcarbonyl)propanenitrile (377 mg, 0.913 mmol), meta-trifluoromethoxy bromobenzene (200 mg, 0.830 mmol), sodium tert-butoxide (111 mg, 1.16 mmol), tris(dibenzylideneacetone) dipalladium (0) (22.8 mg, 0.025 mmol), racemic BINAP (31 mg, 0.05 mmol), and toluene (3 mL) were combined in a Carius tube, vacuum degassed, placed under an argon atmosphere, sealed and heated to 80 C. overnight. The reaction was cooled, taken up in diethyl ether, filtered, washed with water, saturated aqueous sodium bicarbonate, brine, dried over MgSO4, filtered, evaporated, and purified on slica gel (10% hexanes/CH2Cl2) to yield 255 mg of the title compound as a white powder. 1H NMR 500 MHz (DMSO-D6): delta 7.97 (d, 1H, J=7.18 Hz), 7.88 (m, 1H), 7.84 (m, 1H), 7.78 (d, 1H, J=8.25 Hz), 7.52 (t, 1H, J=7.48 Hz), 7.41 (m, 2H), 7.30 (t, 1H, J=8.25 Hz), 7.23 (td, 1H, J=7.79 Hz, 1.68 Hz), 7.12 (m, 2H), 6.91 (dd, 1H, J=8.40 Hz, 1.68 Hz), 6.79 (m, 2H), 6.72 (d, 1H, J=8.09 Hz), 6.01 (s, 1H), 4.01 (s, 3H), 3.68 (bs, 4H0, 3.16 (bs, 4H) 1.63 (s, 3H) MS (ESI) m/z 574 ([M+H]+); Anal. calcd for C33H30F3N3O3. 0.35 C6H14: C, 69.82; H, 5.83; N, 6.96. Found: C, 69.81 H, 5.91; N, 6.74.
The chemical industry reduces the impact on the environment during synthesis 2252-44-0. I believe this compound will play a more active role in future production and life.
Reference:
Patent; Wyeth; US2005/256132; (2005); A1;,
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