Halopropyl isocyanates

Halopropyl isocyanates. Reaction of (1) with pyridine and tosyl chloride in CH2CI2 at 20-25° leads to a crystalline pyridinium salt (2). Reaction of (2) with pyridinium chloride, bromide, or iodide gives the halopropyl isocyanates... 

Haller-Bauer reaction, 525 a-Halo acyl chlorides, 75 2-Haloethyl esters, 553 y-Halo ketones, 524 Halomcthyl aryl ketones, 103 Halomethyl aryl sulfones, 41 Halomethylation, 105 tj-Halo-l-phenyl-l-alkynes, 165 Halopropyl isocyanates, 570 2-Halopyridines, 479 Halo-a,p-unsaturated ketones, 647-648 p-Halovinyl ketones, 644 Haworth succinic anhydride synthesis, 474 Hemithioacetal interchange, 381-382... 

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See also in sourсe #XX -- [ ]

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