申请人:TEIJIN LIMITED
公开号:EP0338796A2
公开(公告)日:1989-10-25
2-Substituted-2-cyclopentenones represented by the formula (I):
wherein A is a hydroxyl group or
and B is a hydrogen atom or A and B are bonded together to form one bonding arm;
R1 represents a substituted or unsubstituted hydrocarbon group having 1 to 10 carbon atoms;
R2 represents a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms;
R3 represents a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms; wherein, when R3 is a single bond bonded to the cyclopentene skeleton,
X represents a hydrogen atom, a hydroxyl group or a protected hydroxyl group; and
when R3 is a double bond bonded to the pentene skeleton, X represents a bonding arm constituting a part of said double bond; and
m and n independently represent 0, 1 or 2.
由式(I)代表的 2-取代-2-环戊烯酮:
其中 A 是羟基或
和 B 是氢原子或 A 和 B 键合在一起形成一个键臂;
R1 代表具有 1 至 10 个碳原子的取代或未取代的烃基;
R2 代表具有 1 至 10 个碳原子的取代或未取代的脂肪族烃基;
R3 代表具有 1 至 10 个碳原子的取代或未取代的脂族烃基; 其中,当 R3 是键合在环戊烯骨架上的单键时、
X 代表氢原子、羟基或受保护的羟基;以及
当 R3 是与戊烯骨架结合的双键时,X 代表构成所述双键一部分的键臂;以及
m 和 n 分别代表 0、1 或 2。