Process for producing 2-hydroxy-4-methyltetrahydropyran
    53.
    发明授权
    Process for producing 2-hydroxy-4-methyltetrahydropyran 失效
    2-羟基-4-甲基四氢吡喃的制备方法

    公开(公告)号:US4808737A

    公开(公告)日:1989-02-28

    申请号:US921383

    申请日:1986-10-22

    CPC分类号: C07D309/10

    摘要: The hydroformylation of 3-methyl-3-buten-1-ol with hydrogen and carbon monoxide, when carried out under relatively mild conditions, gives 2-hydroxy-4-methyltetrahydropyran (MHP) in high rate of reaction and in high selectivity even in a very low rhodium catalyst concentration. MHP is useful as a starting material for the production of 3-methyl-1,5-pentanediol and .beta.-methyl-.delta.-valerolactone which are in turn usable as raw materials for producing polyesters and polyurethanes. The process according to the invention can give such MHP advantageously from the industrial viewpoint and has very great industrial utility.

    摘要翻译: 当在相对温和的条件下进行时,3-甲基-3-丁烯-1-醇与氢气和一氧化碳的加氢甲酰化得到高反应速率的2-羟基-4-甲基四氢吡喃(MHP),甚至在高选择性下 极低的铑催化剂浓度。 MHP可用作生产3-甲基-1,5-戊二醇和β-甲基-Δ-戊内酯的原料,它们可用作生产聚酯和聚氨酯的原料。 根据本发明的方法可以从工业的角度有利地提供这样的MHP并具有非常好的工业实用性。

    Preparation of 1,1,2-trialkoxyethanes
    55.
    发明授权
    Preparation of 1,1,2-trialkoxyethanes 失效
    1,1,2-三烷氧基乙醚的制备

    公开(公告)号:US4755625A

    公开(公告)日:1988-07-05

    申请号:US73999

    申请日:1987-07-16

    CPC分类号: C07C41/48

    摘要: 1,1,2-trialkoxyethanes I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.8 -alkyl and R.sup.1 and R.sup.2 may furthermore be bonded to one another to form a 5-membered to 7-membered ring, are prepared by reacting a formaldehyde dialkyl acetal II with carbon monoxide and hydrogen, from 0.5 to 1.5 moles of hydrogen being used per mole of carbon monoxide, and with not less than 1 mole of alcohol R.sup.3 OH per mole of formaldehyde dialkyl acetal under superatmospheric pressure and at elevated temperatures in the presence of a catalyst which is formed from a cobalt carbonyl compound and a trivalent organic compound of the formula III ##STR2## where A is phosphorus, arsenic, antimony or bismuth and R.sup.4, R.sup.5 and R.sup.6 are each an organic radical.

    摘要翻译: 其中R 1,R 2和R 3各自是C 1 -C 8 - 烷基,R 1和R 2可以彼此键合形成5元至7元环, 通过使甲醛二烷基缩醛II与一氧化碳和氢反应,每摩尔一氧化碳使用0.5至1.5摩尔氢,并且在超大气压下每摩尔甲醛二烷基缩醛不少于1摩尔醇R3OH, 在由羰基钴化合物和式III的三价有机化合物形成的催化剂存在下,在升高的温度下,其中A是磷,砷,锑或铋,并且R 4,R 5和R 6各自是有机的 激进。

    Catalytic system for the hydroformylation of olefins process of
hydroformylation
    60.
    发明授权
    Catalytic system for the hydroformylation of olefins process of hydroformylation 失效
    催化体系加氢甲酰化加氢甲酰化过程

    公开(公告)号:US4599323A

    公开(公告)日:1986-07-08

    申请号:US694556

    申请日:1984-12-24

    CPC分类号: C07C45/50

    摘要: A hydroformylation catalyst system consisting essentially of a complex combination (1) of rhodium, carbon monoxide and triarylphosphine or triarylphosphite ligand, a compound (2) of cobalt and a triarylphosphine or triarylphosphite compound (3), wherein said system contains a source of at least one conjugated diene (4).

    摘要翻译: PCT No.PCT / FR84 / 00115 Sec。 371日期1984年12月24日第 102(e)1984年12月24日PCT PCT 1984年4月24日PCT公布。 出版物WO84 / 04299 日本公报1984年11月8日。基本上由铑,一氧化碳和三芳基膦或三芳基亚磷酸酯配体的复合组合(1),钴和三芳基膦或三芳基亚磷酸酯化合物(3)的化合物(2)组成的加氢甲酰化催化剂体系,其中所述 系统含有至少一种共轭二烯(4)的源。