Diamines and Derivatives

Piperazine and Derivatives. See Diethylene-diamine and Derivatives in Vol 5, D1230-R to D1231-R. An addnl ref is A.T. Blomquist, OSRD 4134 (1944), 7 68... 

EDD (or EDDN). Amer abbrns for Ethylene-diamine Dinittate, described under Ethylene-diamine and Derivatives in Vol 6... 

Cyclo-2,4,S-trimethylene-l,3-diamine and derivs 3C610—C611... 

Suitably substituted 1,2-diamines and derivatives can by cyclized into 2H-imidazoles either by photolytic or thermal treatment in the presence of base. The 2/f-imidazole products, however, cannot always be thermally isomerized to the 1/f-isomers. The migratory aptitudes of 2-substituents have been shown to lie in the order methyl[Pg.15]

Dipicrylphenylenediamine and its 5-Nitro Derivative. See under Diphenylphenylene-diamine and Derivatives... 

Suitable substituted 1,2-diamines and derivatives can be cyclized to 2 f-imidazoles, either photo-lytically or by thermolysis in the presence of a base <87S547, 87TL4605, 89JCS(Pl)2035>. The 2H-imidazole products cannot be isomerized to the 1//-isomers either thermally, or by boiling with acetic acid (Scheme 131) <87S547>. 

With aliphatic diamines fyith ethylene diamine and derivatives With ethylene diamine [Ni(en),](N0j)2 sc 2.0--1.3 zero-fleld susceptibility measured between T= 20 K and 1.3 K compound orders antiferromagnetically, 0n <1.3O K 74V4, Fig. 268... 

H 7fA 1,3-propane diamine and derivatives Ni(NH2CH2CH2CH2NH2)2(NCS)2 ) 298 3.17 octahedral coordination suggested 73G21... 

Cu N(CH(CH3)CH20H)3 2S04 H2O ) With aliphatic diamines With ethylene diamine and derivatives room 2.16 octahedral coordination suggested 74R12... 

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