Arsine derivatives

Products of formulae PtBr4 (/i-arsine) ( -arsine Br2), in which only one of the olefinic ligands has been brominated can be isolated from the reaction of one equivalent of bromine with PtBr4 (pS)2 and PtBr4 ( A)2. Attempts to obtain the analogous i-arsine derivatives gave... 

Arsine Derivotives,Organic Many arsine derivs were proposed as CWA s. More than 60 of such derivs are listed by Wachtel (Ref, pp 189-92). The most known of these compds is Lewisite or Ml, which is fi-chlara-vinyldichlorodrsine, C1 CH CH AsCla, first... 

Arsine derivs used by the Germans were not as effective as Lewisite. They included a) Dic ,US designation EDt ethyldicbloroarsine... 

C(HS )jAsCl (Ref, p 196) and Clark II, bi-phenylcyanoarsine, (CSHS )2As CN (Ref, p 199). Another Ger arsine deriv was phenyl-dibromoarsine, C6HS -AsBrj,... 

Arsine and derivs 1 A491 Adamsite 1 A491 arsine derivs, organic 1 A491 Clark I and I11 A491 Dick 1 A491 Lewisite 1 A491... 

ED. Ethyldichloroarsine(Ger Dick or Griinkreuz -3), C2Hg,AsCl2 oily liq with biting pepper -like odor bp 312°F(ca 156°) acts as lung irritant(Ref 16,pp 143 195-6 Ref 25a,p 168) (See also Vol l,p A491-R, under Arsine Derivatives, Organic)... 

Arsine Derivatives,Organic. Many arsine derivs were proposed as CWA s. More than 60 of such derivs are listed by Wachtel (Ref, pp 189-92). The most known of these compds is Lewisite or MI, which is f -cbloro-vinyldichloroarsine, C1-CH CH- AsC12, first isolated in 1917 by Dr W. Lee Lewis and developed as a war gas by the US Chemical Warfare Service (Ref, pp 202-6). Another important arsine CWA is Adamsite (Brit) (designated in the US as DM) or diphenylamine-chloroarsine ... 

In contrast, reaction of triphenylphosphine with perfluorocyclobutene gave a product which Burton and co-workers established as the ylide (36), by X-ray crystallography [34], with significant double-bond character (Scheme 13). An analogous arsine derivative has also been described [35]. 

The pentacarbonylcobalt cation is the parent carbonyl cation of cobalt, but it is only the phosphine and arsine derivatives which are stable enough to be isolated. A nonpressure synthesis of the pentacarbonylcobalt cation... 

Arsine derivs used by the Germans were not as effective as Lewisite. They included a) Dick,US designation ED, ethyldichloroOrsine C,H, -AsCl, (Ref, p 194) b)C/ar / (US designation DA) biphenylchloroarsine,... 

Meanwhile attention hkd been paid to the copper(I) iodide-tertiary phosphine and arsine derivatives 86). An aqueous solution of potassium iodide containing cuprous iodide, when shaken vigorously with, for example, triethylphosphine, rapidly deposited white pellets of composition... 

An investigation of the tertiary phosphine and arsine derivatives of cadmium (II) and mercuric halides (1940) was brought to an end by the Second World War nevertheless, it proved such a rich vein that the results can only be very briefly summarized (12). 

Methane bacteria have been shown to catalyze reactions in which the active methyl group is transferred to acceptors such as arsenate or mercury. When extracts are incubated in a hydrogen atmosphere with methylcobalamin, arsenate, and ATP, a volatile arsine derivative is formed (20). Arsines are difficult and dangerous to work with they are extremely poisonous and are oxidized rapidly in air. Fortunately they have an intense garhc odor so the investigator is warned of their presence. 

In reaction mixtures which contained arsenate the reaction mixture turned brown, indicating the transfer of the methyl group from methylcobalamin. Methane formation was inhibited. Of the various methyl donors tested as substrates only methylcobalamin could form an alkyl arsine of the arsenic derivatives tested as substrates only cacodylic acid was reduced directly to an alkyl arsine without the addition of methylcobalamin. However, ATP and a hydrogen atmosphere were required, and the final alkyl arsine derivative was identified as dimethylarsine. The reductive pathway is as follows ... 

Nitrido, imido, amino, thiocyanate, nitrilo, pyridine, dinitrogen, diazenido, hydrazido, diazene, nitrene, hydroxylamino Phosphine derivatives Arsine derivatives... 

TRICARBONYL PHOSPHINE, PHOSPHITE, AND ARSINE DERIVATIVES OF COBALT(I)... 

Tricarbonyl Phosphine, Phosphite, and Arsine Derivatives of Cobalt(I) 175... 

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