| 摘要 |
NEW MATERIAL:A compound of formula II [alpha ring is five membered ring containing one N atom, five-membered ring containing one N atom linked to e.g. benzene ring, etc.; beta ring is benzene ring, naphthalene ring, anthracene ring, etc.; R<2> is H, (substituted)amino, 1-20C alkoxy, 7-20C aralkoxy, etc.; X is O, S or N-R<4> (R<4> is H, 1-20C alkyl, 7-20C aralkyl, 6-19C aryl, etc.); n is >=1] having at least one substituent of formula l (R<3> is addition polymerizable functional group). EXAMPLE:Spiroxazine of formula III. USE:Useful for printing, optical instruments, recording materials, clothing, decoration, etc. PREPARATION:Firstly, an methylene compound of formula IV is reacted with a nitroso compound of formula V to synthesize the precursor of a compound of the formula I. Thence, an isocyanate compound of formula R<3>NCO is reacted with the OH group, (monosubstituted)amino group or mercapto group in this precursor. |
