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    • 29. 发明申请
    • METHODS OF STABILIZING THIOPHENE DERIVATIVES
    • 稳定噻吩衍生物的方法
    • US20070260070A1
    • 2007-11-08
    • US11744264
    • 2007-05-04
    • Friedrich JonasKlaus WussowKnud Reuter
    • Friedrich JonasKlaus WussowKnud Reuter
    • C07D495/02
    • C07D495/04
    • Methods of stabilizing thiophene derivatives of the general formula (I) by treatment with basic compounds: wherein R1 and R2 each independently represents a moiety selected from the group consisting of hydrogen, optionally substituted C1-20 alkyl groups which can contain up to 5 heteroatoms selected from the group consisting of oxygen and sulfur, optionally substituted C1-20 oxyalkyl groups which can contain up to 5 heteroatoms selected from the group consisting of oxygen and sulfur, or wherein R1 and R2 together represent a fused cyclic moiety selected from the group consisting of optionally substituted C1-20 dioxyalkylene groups and C1-20 dioxyarylene groups; and stabilized thiophene derivatives that can be prepared by such methods.
    • 通过用碱性化合物处理来稳定通式(I)的噻吩衍生物的方法:其中R 1和R 2各自独立地表示选自氢 ,任选取代的C 1-20烷基,其可以含有至多5个选自氧和硫的杂原子,任选取代的C 1-20烷氧基,其可以 含有多至5个选自氧和硫的杂原子,或其中R 1和R 2一起代表稠合的环状部分,其选自任选取代的 C 1-20二氧亚烷基和C 1-20二取代的亚芳基; 和可以通过这些方法制备的稳定的噻吩衍生物。