Fragrance compounds
    72.
    发明授权
    Fragrance compounds 有权
    香料化合物

    公开(公告)号:US06551988B1

    公开(公告)日:2003-04-22

    申请号:US09719774

    申请日:2000-12-18

    申请人: David Munro

    发明人: David Munro

    IPC分类号: A61K746

    摘要: 4,8-cyclododecadienyl ketones having formula (I), in which R has up to 5 carbon atoms, are novel compounds exhibiting woody/amber odor characteristics which find use in perfumes and in perfumed products.

    摘要翻译: 具有式(I)的4,8-环十二碳二烯酮,其中R具有多达5个碳原子,是表现出木香/琥珀气味特征的新化合物,其用于香料和香料产品中。

    Ortho-alkylation method of aromatic ketones
    74.
    发明授权
    Ortho-alkylation method of aromatic ketones 失效
    芳香酮的正烷基化方法

    公开(公告)号:US06291716B1

    公开(公告)日:2001-09-18

    申请号:US09792108

    申请日:2001-02-26

    IPC分类号: C07C4568

    摘要: An ortho-alkylation method of an aromatic ketone. In the method, as starting materials, the aromatic ketone is reacted with aliphatic or aromatic alkyl moiety-containing olefins in the presence of a primary amine and a transition metal catalyst as reaction catalysts, or ketimines resulting from a reaction of aromatic ketones with a primary amine are reacted with aliphatic or aromatic alkyl moiety-containing olefins in the presence of a transition metal catalyst, thereby introducing the alkyl moiety to the ortho-position of the aromatic ketone.

    摘要翻译: 芳香酮的邻位烷基化方法。 在该方法中,作为起始原料,芳族酮在含有伯胺和过渡金属催化剂作为反应催化剂的存在下与含脂肪族或芳香族含烷基部分的烯烃反应,或由芳香族酮与伯 胺在与过渡金属催化剂存在下与脂族或芳族含烷基部分的烯烃反应,从而将烷基部分引入芳族酮的邻位。

    1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone and fragrance
compositions containing same
    78.
    发明授权
    1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone and fragrance compositions containing same 失效
    1,1,2,3,3,6-十六烷基-4,5,6,7-四氢-2H-吲哚及其含有的芳香族组合物

    公开(公告)号:US5164365A

    公开(公告)日:1992-11-17

    申请号:US661361

    申请日:1991-02-26

    摘要: The present invention concerns the novel odorant 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone, I, a process for the manufacture of I, novel intermediates used in the process and fragrance compositions containing I. ##STR1## The process for the manufacture of 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone comprises hydroborating 1,1,2,3,3,6-hexamethyl-4,7-dihydroindane and oxidizing the hydroboration product to 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone, or reductively alkylating, especially methylating, 5-nitro-1,1,2,3,3,6-hexamethylindane and converting the resulting 5-dialkyl-amino-1,1,2,3,3,6-hexamethylindane into 1,1,2,3,3,6-hexamethyl-4,5,6,7-tetrahydro-5-indanone by reduction of the benzene ring and hydrolysis of the resulting enamine.

    摘要翻译: 本发明涉及新颖的加味剂1,1,2,3,3,6-六甲基-4,5,6,7-四氢-5-二氢茚酮I,一种制备I的方法,用于 含有I的方法和香料组合物。制备1,1,2,3,3,6-六甲基-4,5,6,7-四氢-5-茚酮的方法包括将1,1, 2,3,3,6-六甲基-4,7-二氢茚满,并将该氢化产物氧化成1,1,2,3,3,6-六甲基-4,5,6,7-四氢-5-二氢茚酮,或 将5-硝基-1,1,2,3,3,6-六甲基茚满还原性烷基化,特别是甲基化,并将所得的5-二烷基 - 氨基-1,1,2,3,3,6-六甲基茚满转化成1,1 ,2,3,3,6-六甲基-4,5,6,7-四氢-5-茚酮通过还原苯环和水解所得的烯胺。

    3-Hydroxy-2-cyclobuten-1-one salts
    80.
    发明授权
    3-Hydroxy-2-cyclobuten-1-one salts 失效
    3-羟基-2-环糊精1-ONE盐

    公开(公告)号:US5087756A

    公开(公告)日:1992-02-11

    申请号:US658707

    申请日:1991-02-21

    摘要: 3-Hydroxy-2-cyclobuten-1-one salts of the general formula: ##STR1## wherein R is an ammonium group of the general formula: ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different in meaning and each is a hydrogen atom, a lower alkyl group or a cycloalkyl group or R is an alkali metal atom. The salts according for formula I are obtained by the reaction of pure 3-acetoxy-2-cyclobuten-1-one, or 1,3-cyclobutanedione or a distillation residue of the diketene production containing 3-acetoxy-2-cyclobuten-1-one, with a base. The base can be an amine of the general formula: ##STR3## wherein R.sub.1, R.sub.2 , and R.sub.3 have the above-mentioned meaning, or an alkali metal alcoholate or an alkali metal hydroxide. The salts according to formula I are suitable for the production of squaric acid, by their being halogenated in a first step and then being hydrolyzed to squaric acid in a second step.

    摘要翻译: 3-羟基-2-环丁-1-酮其中R是下列通式的铵基团:其中R1,R2和R3的含义相同或不同, 各自为氢原子,低级烷基或环烷基,或R为碱金属原子。 式I的盐通过纯的3-乙酰氧基-2-环丁烯-1-酮或1,3-环丁烷二酮或含有3-乙酰氧基-2-环丁烯-1-酮的双烯酮的蒸馏残余物的反应获得, 一个,有一个基地。 碱可以是以下通式的胺:其中R1,R2和R3具有上述含义,或碱金属醇盐或碱金属氢氧化物。 根据式I的盐适用于生产方酸,通过在第一步中被卤化,然后在第二步中水解成方酸。