- Preparation and properties of CF3As[ON(H)CF3]2 and (CF3)2AsON(H)CF3
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Trifluoronitrosomethane reacts with trifluoromethylarsine and bis(trifluoromethyl)arsine to afford CF3As[OBN(H)CF3]2 (A) and (CF3)2AsON(H)CF3 (B), respectively. Compound B has been found to decompose at 60 °C to give (CF3)2As(O)H, (CF3)2AsOH and (CF3)2AsF. The reactions of both A and B with anhydrous hydrogen chloride result in the cleavage of the As-O bond to afford quantitative yields of the respective arsenic chloride. Reactions of B with bis(trifluoromethyl)nitroxyl gives (CF3)2AsON(CF3)2, (CF3)2NOH, (CF3)2NH, CF3NO2, CF3NO and a non-volatile white solid.
- Ang,Koh
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- REACTIONS OF BIS(TRIFLUOROMETHYL)NITROXYL WITH (CF3)2AsX (WHERE X = F, Cl and Br)
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(CF3)2AsX (X = F, Cl) give at elevated temperatures substitution reactions with (CF3)2NO to afford (CF3)2NOAs(CF3)X and (CF3)2NOCF3.The formation of addition products at low temperatures to give 2As(CF3)2X, followed by elimination reactions at elevated temperatures to give the final products provide for the first time direct evidence for the mechanisms of the substitution reactions.With (CF3)2AsBr, bromine was initially displaced to afford (CF3)2NOAs(CF3)2, followed by addition reactions to give 3As(CF3)2.
- ANG, H. G.,SO, K. K.
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p. 433 - 450
(2007/10/02)
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