Bromine azide

Benzoyl azide Biphenyl triozonide Boron tribromide Bromine azide Bromine solutions... 

The elements of bromine azide have been added to steroid olefins. The addition can be rationalized as proceeding through a positive bromonium ion under the ionic conditions of Hassner and Boerwinkle (bromine plus sodium azide and hydrochloric acid in nitromethane-dichloromethane) or Ponsold (A-bromosuccinimide or A-bromoacetamide in chloroform contain-... 

The properties of chlorine azide resemble those of bromine azide. Pon-sold has taken advantage of the stronger carbon-chlorine bond, i.e., the resistance to elimination, in the chloro azide adducts and thus synthesized several steroidal aziridines. 5a-Chloro-6 -azidocholestan-3 -ol (101) can be converted into 5, 6 -iminocholestan-3l -ol (102) in almost quantitative yield with lithium aluminum hydride. It is noteworthy that this aziridine cannot be synthesized by the more general mesyloxyazide route. Addition of chlorine azide to testosterone followed by acetylation gives both a cis- and a trans-2iddMct from which 4/S-chloro-17/S-hydroxy-5a-azidoandrostan-3-one acetate (104) is obtained by fractional crystallization. In this case, sodium borohydride is used for the stereoselective reduction of the 3-ketone... 

Although chlorine azide and bromine azide tend to give some dihalogen adducts, these reagents have been used in the presence of alcohol, ester and epoxy functions without interference.In the case of 17a-acetoxy-A -progesterone, a selective addition to the 6,7-double bond is obtained. ... 

Bromine azide addition to testosterone esters is achieved by the same procedure with the use of //-bromosuccinimide. 

Regioselective addition of bromine azide to dienes 38 at 25 °C gave the 1,4-adducts 39 or the 1,2-adducts 40 as thermodynamically favored products, their ratios depending on the substituent R on the terminal carbon (Scheme 2.12). These adducts were easily converted into vinylaziridines 41 on treatment with trimethyl-phosphite, although the stereochemistries of 39, 40, and 41 are unclear [23]. 

Scheme 2.12 Synthesis of vinylaziridines through addition of bromine azide to dienes.

A mixture of bromine in the gaseous state and nitrogen was in contact with sodium azide which detonated, and was explained by formation of Br-Ns bromine azide, which like all compounds that have halogen-nitrogen bonds, is hardly stable. Thus, bromine was mixed with ammonia at ambient temperature. The mixture was then cooled down to -95°C and red oil was formed, which detonated when the mixture was heated and reached -67°C. It formed the following complex ... 

Silver azide, itself a sensitive compound, is converted by ethereal iodine into the less stable and explosive compound, iodine azide. Similarly, contact with nitrogen-diluted bromine vapour gives bromine azide, often causing explosions. 

Nitrogen-diluted bromine vapour passed over silver azide or sodium azide formed bromine azide, and often caused explosions. 

Ammonium hexacyanoferrate(II), 2577 f Arsine, 0100 Azido-2-butyne, 1473 3-Azidopropyne, 1114 c /.v-A/obcn/cnc, 3484 Azoxybenzene, 3485 Barium azide, 0214 Benzenediazonium nitrate, 2275 Benzotriazole, 2269 Borane, 0135 Bromine azide, 0256 f 3-Bromopropyne, 1090 f 1,2-Butadiene, 1479 f 1,3-Butadiene, 1480 f Buten-3-yne, 1423 f 1-Butyne, 1481 f 2-Butyne, 1482 Cadmium azide, 3957 Cadmium cyanide, 0588 Cadmium fulminate, 0589 Cadmium nitride, 3960... 

Bromine azide, 0256 Chlorine azide, 4030 Cyanogen azide, 0544 Fluorine azide, 4307 Iodine azide, 4621 See metal pnictides... 

Bromine azide (BrN ) is a strong oxidizing agent that will explode when shocked or heated. It is used to make detonators for dynamite and other explosives. 

Chemical Reactions. Hantzsch (Ref 6) reacted iodine with Ag azide and obtd Iodine Azide (qv) and Spencer (Ref 26) reacted bromine with Ag azide to form the highly unstable Bromine Azide (qv) Frieson Browne (Ref... 

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