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    • 5. 发明专利
    • METHOD FOR PRODUCING α,β-UNSATURATED ETHER
    • 生产α,β-不饱和醚的方法
    • JP2009120514A
    • 2009-06-04
    • JP2007294742
    • 2007-11-13
    • Showa Denko Kk昭和電工株式会社
    • OKUMURA YOSHIKUNIENATSU HIROTOAOKI TAKANORI
    • C07C41/28B01J27/18C07B61/00C07C43/16
    • C07C41/28Y02P20/584C07C43/16
    • PROBLEM TO BE SOLVED: To provide a method for efficiently producing an α,β-unsaturated ether stably over a long period of time through reactivating a catalyst to have a longer service life.
      SOLUTION: The method for producing the α,β-unsaturated ether of general formula (3): R
      1 R
      2 C=C-R
      3 (OR
      4 ) comprises thermally decomposing the corresponding acetal of general formula (2): R
      1 R
      2 CH-CR
      3 (OR
      4 )
      2 in a vapor phase in the presence of a catalyst and a compound having in the molecule at least one hydrogen atom formable of a hydrogen bond. In the general formulas (2) and (3), R
      1 , R
      2 and R
      3 are each independently H, an alkyl, alkenyl or aryl; R
      4 is an alkyl, alkenyl or aryl, wherein, a plurality of the groups R
      4 in the formula (2) may be the same as or different from each other.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 解决问题的方案:提供一种通过重新催化剂使其具有更长的使用寿命来长时间稳定地生产α,β-不饱和醚的方法。 解决方案:用于制备通式(3)的α,β-不饱和醚的方法:R SB 1 R SB 2 C = CR SB 3 SB>(OR 4 )包括热分解通式(2)的相应缩醛:R SB 1 CH- 在气相存在下,在催化剂和分子中具有至少一个可形成氢的氢原子的化合物中,在气相中,3 (OR 4 2 键。 在通式(2)和(3)中,R 1,R 2,R SB 2和R SB 3各自独立地为H,烷基,烯基 或芳基; R 2是烷基,烯基或芳基,其中式(2)中的多个基团R SB 4可以彼此相同或不同。 版权所有(C)2009,JPO&INPIT