Bromo Bromobenzaldehyde

The crude product (Note 2) is transferred to a 2-I. flask and mixed thoroughly with 200 g. of powdered calcium carbonate. About 300 cc. of water is added and the mixture is heated cautiously (Note 3) and then refluxed for fifteen hours to effect hydrolysis. The product is then distilled in a rapid current of steam (Note 4), and the distillate is collected in soo-cc. portions, cooled, and the />-bromobenzaldehyde is collected and dried in a desiccator. From the first liter of distillate 50-60 g. of -bromo-benzaldehyde melting at 55-57° is obtained. An additional... 

Bromobenzaldehyde, 17, 20 18, 62 Jl-BttOMOBF.NZALDrACETA.TF, 18, 63 J-Bromobenzoic acid, 17, 21 p-B romobiphenyl, 16, 85 ar-Bromo-iso-caproic acid, 11, 22 a-Bromo-B-caproic acid, 11, 22 Bromocyanogen, 11, 30 /9-Bromoethylamtoe hydrobromide, 18,13, 77... 

Bromobenzaldehyde, 100 Bromobenzene, 97 a-Bromo- -butyric acid, 62 a-Bromo- -butyryl chloride, 62 Butadiene, 93... 

Bromo-4-acetaminotoluene, 593, 605 p-Bromoacetanilide, 577, 580 p - Bromoace tophenone. 726, 732 m-Bromo-p-acetotoluidido, 593, 605 3-Bromo-4-aminotoluene, 593, 605 hydrochloride, 605 p-Bromoanilides, 361 p-Bromoaniline, 577, 580 o-Bromoanisole, 404 p-Bromobenzaldehyde, 689, 694, 696 diacetate, 696... 

The use of a silicon hydride or a tin hydride in place of molecular hydrogen allows the formylation of aryl halides to proceed under much milder conditions. The reactions of aryl and benzylic bromides/iodides catalyzed by Pd(PPh3)3 in the presence of poly(methylhydrosiloxane) (PHMS) at 80° and 3 atm of carbon monoxide afford the corresponding aldehydes in 48- 96% yields. When l-bromo-4-iodobenzene is used as the substrate, 4-bromobenzaldehyde is formed exclusively in 95% yield (Eq. 61). "... 

Benzaldehyde, 3-bromo- Benzaldehyde, m-bromo- 3-Bromobenzaldehyde m-Bromobenzaldehyde EINECS 221-526-9 NSC 66828. Liquid bp = 234° Xm = 245, 291 nm (s = 6500, 790, MeOH) insoluble in H2O, slightly soluble in CCI4, very soluble in EtOH, Et20. 

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