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    • 5. 发明授权
    • Process for the enzymatic preparation of aliphatic alcohols and
aldehydes from linoleic acid, linoleic acid, or a natural precursor
    • 用于从亚油酸,亚油酸或天然前体酶制备脂族醇和醛的方法
    • US5464761A
    • 1995-11-07
    • US185786
    • 1994-01-21
    • Bernard MullerAntoine GautierChristopher DeanJean-Charles Kuhn
    • Bernard MullerAntoine GautierChristopher DeanJean-Charles Kuhn
    • A23L27/24C12P7/04C12P7/24C12P1/02C12P7/02C12P7/64
    • C12P7/24A23L27/24C12P7/04
    • The aldehydes, N-hexanal, 3-(Z)-hexen-1-al and 2-(E)-hexen-1-al, and their corresponding alcohols are enzymatically produced in high yield from linoleic, linolenic acid or a natural precursor thereof such as hydrolyzed oil. The acid or natural precursor is mixed with soy flour containing lipoxygenase which converts the acid to 13-hydroperoxy-octadeca-9,11-dienoic acid or 13-hydroperoxy-octadeca-9,11,15-trienoic acid. Guava homogenate containing lyase is added to convert the 13-hydroperoxy-octadeca-9,11-dienoic acid into n-hexanal or the 13-hydroperoxy-octadeca-9,11,15-trienoic acid into 3-(Z)-hexen-1-al. The n-hexanal or 3-(Z)-hexen-1-al is recovered, or reduced with yeast to n-hexanol or 3-(Z)-hexen-1-ol, respectively. Alternatively, the 3-(Z)-hexen-1-al is isomerized to obtain 2-(E)-hexen-1-al which is recovered or reduced with yeast to 2-(E)-hexen-1-ol which is recovered. The yeast used for reducing and isomerizing is Saccharomyces cerevisiae. Steam distillation and/or extraction with an inert organic solvent is used in recovery of the aldehydes and alcohols.
    • PCT No.PCT / EP93 / 01057 Sec。 371日期1994年1月21日 102(e)日期1994年1月21日PCT提交1993年5月3日PCT公布。 出版物WO93 / 24644 日期:1993年12月9日。醛,N-己醛,3-(Z) - 己烯-1-醇和2-(E) - 己烯-1-醇及其相应的醇以亚油酸 ,亚麻酸或其天然前体如水解油。 酸或天然前体与含有脂氧合酶的大豆粉混合,其将酸转化为13-氢过氧基 - 十八烷-9,11-二烯酸或13-氢过氧基 - 十八碳-9,11,15-三烯酸。 加入含有裂解酶的番石榴匀浆以将13-氢过氧基 - 十八烷-9,11-二烯酸转化成正己醛或13-氢过氧基 - 十八烷-9,11,15-三烯酸,成3-(Z) - 己烯 - 1-al。 回收正己烷或3-(Z) - 己烯-1-酮,或分别用酵母还原成正己醇或3-(Z) - 己烯-1-醇。 或者,将3-(Z) - 己烯-1-醇异构化得到2-(E) - 己烯-1-al,其用酵母回收或还原成2-(E) - 己烯-1-醇,其为 恢复。 用于还原和异构化的酵母是酿酒酵母(Saccharomyces cerevisiae)。 蒸馏蒸馏和/或用惰性有机溶剂萃取用于回收醛和醇。
    • 6. 发明授权
    • Process for the preparation of 4,4-dimethyl-2-pentene
    • 制备4,4-二甲基-2-戊烯的方法
    • US5396014A
    • 1995-03-07
    • US39014
    • 1993-03-29
    • Jean-Paul LerescheYves Mentha
    • Jean-Paul LerescheYves Mentha
    • C07B61/00C07C2/68C07C2/72C07C6/04C07C11/02C07C13/48C07C6/02
    • C07C13/48C07C6/04C07C2102/10C07C2523/36C07C2527/06C07C2527/126C07C2527/132C07C2531/02C07C2531/12C07C2531/34
    • 1,1,2,3,4,4,6-Heptamethyl-1,2,3,4-tetrahydronaphthalene, a novel naphthalenic compound, is useful as an intermediate for the preparation of 5,6,7,8-tetrahydro-3,5,5,6,7,8,8-heptamethyl-2-naphthalenecarbaldehyde. It is prepared by a process consisting in the addition of an olefin of formula ##STR1## wherein R.sup.1 and R.sup.2 represent different substituents and each defines a hydrogen atom or a methyl radical, with p-cymene. 4,4-Dimethyl-2-pentene [compound (III): R.sup.1 =CH.sub.3 ; R.sup.2 =H] is obtained by the co-metathesis reaction of an olefin of formula ##STR2## wherein R.sup.1 and R.sup.2 represent identical substituents designating each a hydrogen atom or a methyl radical, with an olefin of formula ##STR3## wherein R.sup.3 and R.sup.4, identical or different, designate each a hydrogen atom or a methyl radical in the presence of an appropriate catalyst consisting of Re.sub.2 O.sub.7 on an inert solid carrier, or of WCl.sub.6 /(C.sub.2 H.sub.5).sub.2 O/Bu.sub.4 Sn.
    • PCT No.PCT / CH92 / 00128 Sec。 371日期1995年3月29日 102(e)1995年3月29日PCT PCT。1992年6月29日PCT公布。 出版物WO93 / 04023 日期1993年3月4日.1,1,2,3,4,4,6-七甲基-1,2,3,4-四氢萘(一种新型的萘化合物)可用作制备5,6,7 ,8-四氢-3,5,5,6,7,8,8-七甲基-2-萘甲醛。 它通过一种方法制备,该方法包括加入式取代基的烯烃,并且各自定义氢原子或甲基与对甲基异丙基苯。 4,4-二甲基-2-戊烯[化合物(III)):R1 = CH3; R2 = H]是通过式(I)的烯烃与式(Ⅰ)的烯烃(II)的共转换反应得到的,其中R 1和R 2表示与氢原子或甲基基团相同的取代基, )其中R 3和R 4相同或不同,在惰性固体载体或WCl 6 /(C 2 H 5)2 O / Bu 4 Sn上由Re 2 O 7组成的合适催化剂存在下,各自表示氢原子或甲基。