4-bromophenyl methyl

Kinetic resolution of racemic 4-bromophenyl methyl sulfoxide. Ill... 

Purification of the crude mixture was performed by flash chromatography to afford pure 5-(l-hydroxyethyl)-2-methyl-3-furoic acid 5a-cholestan-3(3-yl ester (4) (90 % yield) and (R)-4-bromophenyl methyl sulfoxide (3) (61 % yield). 

KINETIC RESOLUTION OF RACEMIC 4-BROMOPHENYL METHYL SULFOXIDE... 

Bromophenyl Methyl Tellurium2 To a suspension of 1.27 g (10 mmol) tellurium in 60 ml tetrahydrofuran are added 11 mmol methyl lithium in diethyl ether at 20 during 10 min. Then 1 ml propanone is added to destroy the excess methyl lithium. 1.09 g (1.27 ml, 10 mmol) chloro trimethyl silane arc then added in one portion. After 10 min all volatile materials are eliminated at reduced pressure. The solid residue is dissolved in 120 ml acetonitrile. After addition of 50 mg 18-crown-6 and 3.49 g (10 mmol) 4-methylbenzencsulfonyl-azo-4-bromobenzenc, the mixture is stirred at 20° for 8 h. The mixture is then poured into 300 ml water and extracted with three 100-w/ portions of diethyl ether. The combined extracts are dried with anhydrous magnesium sulfate, the dried mixture is filtered, and the solvent evaporated from the filtrate under reduced pressure. The residue is chromatographed with chloroform/benzene (15 85) as the mobile phase yield 36%. 

Figure 1.51 Grafting vinyl-terminated P3HT onto [(4-bromophenyl)methyl] dioctylphosphine oxide (DOPO-Br)-functionalized CdSe QD. Reprinted from [391] with permission from ACS.

Bis(2-chloroisopropyl) ether N(4-Bromophenyl)methyl-1,2-ethanediamine Butylbenzyl phthalate 4-T ert-butyltoluene Carbazole Carbofuran Chloroacetic acid Chloroaminotoluene (all isomers)... 

The catalytic efficiency and selectivity of the Fe(II) complexes with three ligands (31) (R = O, OMe and C02Et) in the oxidation of a series of alkyls and alkenyls as well as the S atom of 4-bromophenyl methyl sulfide by H2O2 in the presence of AcOH has been compared with the catalytic efficiency of White s complex (32) in order to evaluate the sensitivity of the reaction to electronic effects. ... 

C22H1sBrOj, 4-[(4-Bromophenyl)methyl]-l,4-epoxy-1-phenyl-lH-2,3-ben-zodioxepin-5(4H)-one, 45B, 354... 

Diethyl (((9H-fluoren-2-yl)amino)-(4-bromophenyl)methyl)phosphonate (58e, brown solid, mp 159-161 °C, time 5 min, yieid 93%)... 

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