Benzene 0-bromochloro

Kinetic studies (see Section VI,B) indicated that similar dibromination of dihydrodiazepines could take place in aqueous solution but the dibromo products were not isolated owing to their ready hydrolysis (64JCS2195). The dibromo compound (16, R = Ph, X = Y = Br) and the bromochloro compound (16, R = Ph, X = Br, Y = Cl) were obtained by bromination of the appropriate monohalogenodihydrodiazepines in dry benzene [69JCS(C)1449]. These dihalogeno compounds were debrominated immediately to monohalogenodihydrodiazepinium salts in dilute aqueous acid. 

The following materials were used in the preparation of the various silanes. The magnesium turnings and anhydrous diethylether were supplied by Fisher Scientific. Bromobenzene and the substituted bromobenzenes, p-bromochloro-benzene, p-bromotrifluoromethylbenzene, p-bromotoluene and p-bromoanisole, were supplied by Aldrich Chemical Co. and used as provided after the purity was checked by GC analysis. The diethoxydimethylsilane was supplied by Petrarch Systems. 

LnCpa and Cp2LnCl complexes initiate the dehalogenation of aiyl and vinyl halides by NaH. Chemoselectivity is observed in the reduction of m-bromochloro-benzene and p-iodochlorobenzene to chlorobenzene [192], The asymmetric reduction of methylphenyl glyoxylate to methyl mandelate by NADH models is catalyzed by chiral lanthanide )6-diketonates [193],... 

Chlorobenzene, toluene, Xylenes (o-,m-,p-)/Bi2 and NBS Bromochloro- benzene, bromo- toluene, bromoxy- lenes Fl-beta, H2SO4 nuclear and side-chain products 77... 

Anthracene Anthranilic acid Anthraquinone Antimony pentachloride Benzaldehyde Benzidine dihydrochloride 2,2 -Benzidinedisulfonic acid Benzoguanamine Benzotrifluoride Benzoyl chloride N-Benzylamine N-Benzyl-N-ethyl-m-toluidine Bisphenol A Bromine 4-Bromochloro benzene Butyl acetoacetate n-Butylamine t-Butylamine Ceteareth-15 o-Chloroaniline p-Chloroaniline m-Chlorobenzoic acid o-Chlorobenzoic acid p-Chlorobenzoic acid m-Chlorobenzotrifluoride o-Chlorobenzotrifluoride p-Chlorobenzotrifluoride Chloroform 4-Chloro-2-nitroaniline 2-Chloronitrobenzene... 

Artal, M. Munoz Embid, J. Otin, S. Velasco, I. Isothermal vapor-liquid equilibria of bromochloro-methane or l-bromo-2-chloroethane + tetrachloromethane or benzene. Experimental measurements and analysis in terms of group contributions. Fluid Phase Equilib. 1999, 154, 223-239. 

---