申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0067463A1
公开(公告)日:1982-12-22
Compounds having at least one group -N=C=O and/or
wherein A represents a group OB or NR'R2 wherein B represents an alkyl or aryl group which may contain halogen, alkyl or alkoxy groups and R' and R2 which may be the same or different each represent H, or alkyl or aryl groups which may contain substituents, can be prepared by oxidative conversion of compounds having at least one group
wherein X represents OY or
wherein Y is H, a metal ion or a group NR3R4R5R6 wherein each of R3, R4, R5 and R6 which may be the same or different, is H, alkyl or (substituted) (alk)aryl and Z is a (substituted) alkyl or aryl group.
具有至少一个基团-N=C=O 和/或
其中 A 代表基团 OB 或 NR'R2,其中 B 代表可含有卤素、烷基或烷氧基的烷基或芳基,R'和 R2 可相同或不同,各自代表 H 或可含有取代基的烷基或芳基。
其中 X 代表 OY 或
其中 Y 是 H、金属离子或基团 NR3R4R5R6,其中 R3、R4、R5 和 R6(可以相同或不同)各自是 H、烷基或(取代的)(烷基)芳基,Z 是(取代的)烷基或芳基。