公开(公告)号：US3919228A

公开(公告)日：1975-11-11

申请号：US26008872

申请日：1972-06-06

Applicant: BAYER AG

Inventor： VON GIZYCKI ULRICH ,  OERTEL GUNTER ,  BECK GUENTHER ,  FINDEISEN KURT

IPC: C08G18/71 ,  C07D51/42

CPC classification number: C08G18/714

Abstract: a-Pyridyl, a-pyrimidyl and a-pyrazinyl isocyanates which contain electronegative substituents in the ring are prepared by reacting the corresponding amino compounds with oxalyl chloride. Due to the high reactivity of the -NCO group these compounds are particularly useful as cross linking agents and modifiers for compounds containing Zerewitinoff-active hydrogen.

Abstract translation: 通过使相应的氨基化合物与草酰氯反应来制备环中含有负电荷取代基的α-吡啶基，α-嘧啶基和α-吡嗪基异氰酸酯。 由于-NCO基团的高反应性，这些化合物特别可用作含有Zerewitinoff-活性氢的化合物的交联剂和改性剂。