1.2.2- Trichloro vinylamines

To a flask containing 5.0 gm (23 mmoles) of A, A-diethyl-1,2,2-trichloro-vinylamine [16] cooled to — 15°C is added dropwise at — 10°C under a nitrogen atmosphere 50 mmoles of n-butyllithium in hexane (diluted with volume of dry ether). After the addition the mixture is kept at room temperature for 45... 

Valence tautomerization 17, 801 Vanadate s. Titanium vanadate Vanadium-tin 16, 414 — pentoxide 16, 300 Verley s. Meerwein Vinyl acetate as additive 18, 806 Vinylamines s. 1,2,2-Trichloro-vinylamines... 

Phosphorus(V) from phosphorus(lll) compounds. Tribulylphosphine added at 25° under Ng during 30 min. with water-cooling to N,N-diethyl-2,2,2-trichloro-acetamide, and kept an additional 4 hrs. at 50-55° N,N-diethyl-l,2,2-trichloro-vinylamine (startg. m. f. 442) (Y 82.5%) and tri-n-butylphosphine oxide (Y 72.6%).—This new reaction appears to be general for tert. phosphines and trialkyl phosphites. It also represents a novel method for the prepn. of a new class of vinylamines. F. e., also with trialkyl phosphites, which are oxidized to trialkyl phosphates, s. A. J. Speziale and R. G. Freeman, Am. Soc. 82, 903 (1960). 

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