会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Process for preparing hydroxy-substituted aromatic aldehydes
    • 制备羟基取代的芳族醛的方法
    • US08609903B2
    • 2013-12-17
    • US13078195
    • 2011-04-01
    • Ebel KlausStefan Rüdenauer
    • Ebel KlausStefan Rüdenauer
    • C07C45/90
    • C07C45/65C07C47/575
    • The present invention therefore relates to a process for preparing an aldehyde of the formula (I) where one, two or all three radicals from the group of R1, R3 and R5 are hydroxyl, and that radical or those radicals from the group of R1, R3 and R5 which are not hydroxyl are each independently hydrogen, C1-C8-alkyl or C6-C14-aryl, and R2 and R4 are each independently hydrogen, C1-C8-alkyl, C1-C8-alkoxy or C6-C14-aryl, which comprises converting an aldehyde of the formula (II) in which one, two or all three radicals from the group of R′1, R′3 and R′5 are C1-C8-alkoxy, and that radical or those radicals from the group of R′1, R′3 and R′5 which are not C1-C8-alkoxy are each independently hydrogen, C1-C8-alkyl or C6-C14-aryl, and R2 and R4 are each as defined for formula (I), at elevated temperature and elevated pressure in the presence of (C1-C4-alkyl)2-amine, and then isolating the reaction product of the formula (I).
    • 因此,本发明涉及一种制备式(I)的醛的方法,其中R 1,R 3和R 5基团中的一个,两个或全部三个基团是羟基,并且该基团或那些来自R1, 不是羟基的R 3和R 5各自独立地为氢,C 1 -C 8 - 烷基或C 6 -C 14 - 芳基,R 2和R 4各自独立地为氢,C 1 -C 8 - 烷基,C 1 -C 8 - 烷氧基或C 6 -C 14 - 芳基 其包括将式(II)的醛转化为其中R 1,R'3和R'5基团中的一个,两个或全部三个基团是C 1 -C 8 - 烷氧基,并且该基团或那些基团 不是C1-C8-烷氧基的R'1,R'3和R'5各自独立地为氢,C1-C8-烷基或C6-C14 - 芳基,R2和R4各自如式 I)在升高的温度和升高的压力下,在(C 1 -C 4 - 烷基)-2-胺的存在下,然后分离式(I)的反应产物。
    • 9. 发明申请
    • PROCESS FOR PREPARING HYDROXY-SUBSTITUTED AROMATIC ALDEHYDES
    • 制备羟基取代的芳族醛的方法
    • US20110245544A1
    • 2011-10-06
    • US13078195
    • 2011-04-01
    • Klaus EbelStefan Rüdenauer
    • Klaus EbelStefan Rüdenauer
    • C07C45/61
    • C07C45/65C07C47/575
    • The present invention therefore relates to a process for preparing an aldehyde of the formula (I) where one, two or all three radicals from the group of R1, R3 and R5 are hydroxyl, and that radical or those radicals from the group of R1, R3 and R5 which are not hydroxyl are each independently hydrogen, C1-C8-alkyl or C6-C14-aryl, and R2 and R4 are each independently hydrogen, C1-C8-alkyl, C1-C8-alkoxy or C6-C14-aryl, which comprises converting an aldehyde of the formula (II) in which one, two or all three radicals from the group of R′1, R′3 and R′5 are C1-C8-alkoxy, and that radical or those radicals from the group of R′1, R′3 and R′5 which are not C1-C8-alkoxy are each independently hydrogen, C1-C8-alkyl or C6-C14-aryl, and R2 and R4 are each as defined for formula (I), at elevated temperature and elevated pressure in the presence of (C1-C4-alkyl)2-amine, and then isolating the reaction product of the formula (I).
    • 因此,本发明涉及一种制备式(I)的醛的方法,其中R 1,R 3和R 5基团中的一个,两个或全部三个基团是羟基,并且该基团或那些来自R1, 不是羟基的R 3和R 5各自独立地为氢,C 1 -C 8 - 烷基或C 6 -C 14 - 芳基,R 2和R 4各自独立地为氢,C 1 -C 8 - 烷基,C 1 -C 8 - 烷氧基或C 6 -C 14 - 芳基 其包括将式(II)的醛转化为其中R 1,R'3和R'5基团中的一个,两个或全部三个基团是C 1 -C 8 - 烷氧基,并且该基团或那些基团 不是C1-C8-烷氧基的R'1,R'3和R'5各自独立地为氢,C1-C8-烷基或C6-C14 - 芳基,R2和R4各自如式 I)在升高的温度和升高的压力下,在(C 1 -C 4 - 烷基)-2-胺的存在下,然后分离式(I)的反应产物。