Cyclopentene derivatives
    5.
    发明授权
    Cyclopentene derivatives 失效
    环戊烯衍生物

    公开(公告)号:US4069258A

    公开(公告)日:1978-01-17

    申请号:US666630

    申请日:1976-03-15

    摘要: Cyclopentene derivatives (I) ##STR1## where R.sup.1 is isopropyl or isopropenyl, R.sup.2 is alkyl of 1 to 3 carbon atoms, X is --CHO, a dialkyl acetal or 1,2- or 1,3-alkylene acetal thereof where the acetal radical is of 2 to 6 carbon atoms, --CH.sub.2 OH or --CH.sub.2 OCOR.sup.3 where R.sup.3 is hydrogen or alkyl or alkenyl of up to 3 carbon atoms. The manufacture of I from the corresponding halomethyl cyclopentenes and aldehydes R.sup.2 --CH(CH.sub.3)--CHO in the presence of a base and a quaternary ammonium salt, followed if desired by acetalization or conversion of the --CHO group to the --CH.sub.2 OH or --CH.sub.2 O--CO--R.sup.3 groups. The compounds are useful as fragrance materials.

    摘要翻译: 环戊烯衍生物(I)其中R 1是异丙基或异丙​​烯基,R 2是1至3个碳原子的烷基,X是-CHO,二烷基缩醛或其1,2-或1,3-亚烷基缩醛,其中缩醛 基团为2至6个碳原子,-CH 2 OH或-CH 2 OCOR 3,其中R 3为氢或至多3个碳原子的烷基或链烯基。 在碱和季铵盐的存在下,由相应的卤代甲基环戊烯和醛类R 2 -CH(CH 3)-CHO制备I化合物,如果需要,则通过缩醛化或将-CHO基团转化为-CH 2 OH或-CH 2 O -CO-R3基团。 这些化合物可用作香料。

    Bicyclic aldehydes
    6.
    发明授权
    Bicyclic aldehydes 失效
    双环醛

    公开(公告)号:US4197411A

    公开(公告)日:1980-04-08

    申请号:US898036

    申请日:1978-04-20

    IPC分类号: C07C47/44 C07C47/34 C07C69/02

    摘要: 2-Halomethyl-, 2-alkoxymethyl- and 2-acyloxymethyl-3-methyl-3-formyl-bicyclo[2.2.1]heptane and -hept-5-ene and a process for their preparation.The new compounds are obtained by reacting cyclopentadiene or dicyclopentadiene with the corresponding 4-halo-, 4-alkoxy- or 4-acyloxy-2-methyl-crotonaldehydes under the conventional conditions for Diels-Alder reactions, with or without subsequent catalytic hydrogenation of the Diels-Alder adduct obtained. The new compounds provide an industrially easily realized and advantageous method of synthesis of the sought-after essential ingredients of natural sandalwood oils.

    摘要翻译: 2-卤代甲基 - ,2-烷氧基甲基 - 和2-酰氧基甲基-3-甲基-3-甲酰基 - 双环[2.2.1]庚烷和庚-5-烯及其制备方法。 通过使环戊二烯或二环戊二烯与相应的4-卤代,4-烷氧基 - 或4-酰氧基-2-甲基 - 巴豆醛在Diels-Alder反应的常规条件下进行反应,得到这些新化合物, Diels-Alder加合物得到。 新化合物提供工业上容易实现和有利的合成天然檀香油所需要的必需成分的方法。

    Polycyclic scents
    7.
    发明授权
    Polycyclic scents 失效
    多环类

    公开(公告)号:US4143065A

    公开(公告)日:1979-03-06

    申请号:US815931

    申请日:1977-07-15

    摘要: New polycyclic Diels-Alder adducts which are formed on reaction of 8-vinyl-tricyclo-[5,2,1,0.sup.2,6 ]-dec-8-ene or 8-hydroxy-8-vinyl-tricyclo-[5,2,1,0.sup.2,6 ]-decane with alkenes or alkynes having one or two activating substituents, e.g., --COOH, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --CHO, --COCH.sub.3, --COC.sub.2 H.sub.5 or --CN. They have green, fresh, fruity and in some cases woody odors with long-lasting tenacity and/or fixing properties. They can be used as constituents of perfumes and of compositions for perfuming body care products, detergents and other consumer products.

    Polycyclic scents
    9.
    发明授权
    Polycyclic scents 失效
    多环香味

    公开(公告)号:US4076748A

    公开(公告)日:1978-02-28

    申请号:US708994

    申请日:1976-07-26

    摘要: New polycyclic Diels-Alder adducts which are formed on reaction of 8-vinyl-tricyclo-[5,2,1,0.sup.2,6 ]-dec-8-ene or 8-hydroxy-8-vinyl-tricyclo-[5,2,1,0.sup.2,6 ]-decane with alkenes or alkynes having one or two activating substituents, e.g., --COOH, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --CHO, --COCH.sub.3, --COC.sub.2 H.sub.5 or --CN. They have green, fresh, fruity and in some cases woody odors with long-lasting tenacity and/or fixing properties. They can be used as constituents of perfumes and of compositions for perfuming body care products, detergents and other consumer products.

    摘要翻译: 通过8-乙烯基三环[5,2,1,02,6] - 癸-8-烯或8-羟基-8-乙烯基 - 三环[5,2 ...]反应形成的新的多环狄尔斯 - 阿尔德加合物 ,1,02,6] - 癸烷与具有一个或两个活化取代基的烯烃或炔烃,例如-COOH,-COOCH 3,-COOC 2 H 5,-CHO,-COCH 3,-COC 2 H 5或-CN。 它们具有绿色,新鲜,果香,在某些情况下具有持久强度和/或固定性能的木质气味。 它们可以用作香水和用于加香身体护理产品,洗涤剂和其他消费品的组合物的成分。

    Preparation of 5-vinylpyrrolidones
    10.
    发明授权
    Preparation of 5-vinylpyrrolidones 失效
    5-乙烯基吡咯烷酮的制备

    公开(公告)号:US5496958A

    公开(公告)日:1996-03-05

    申请号:US266141

    申请日:1994-06-27

    IPC分类号: C07D207/26 C07D207/267

    CPC分类号: C07D207/267

    摘要: A process for the preparation of a 5-vinylpyrrolidone of the formula ##STR1## wherein each of R.sup.1 and R.sup.2 is hydrogen or alkyl and R.sup.3 is preferably hydrogen but may further represent alkyl, cycloalkyl, aryl, alkylaryl, arylalkyl or a 5- to 6-membered aromatic or non-aromatic heterocyclic group containing 1 to 3 nitrogen atoms and/or an oxygen or sulfur atom, the process being carried out in two steps, first to react a 3-formylpropionic acid ester of the formula ##STR2## where each of R.sup.1 and R.sup.2 is hydrogen or C.sub.1 -C.sub.8 -alkyl, and R.sup.4 is hydrogen, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl, with a vinylymagnesium halide of the formulaCH.sub.2 .dbd.CH--Mg--X V,where X is chlorine, bromine or iodine, at a temperature of from -30.degree. to 100.degree. C., under a pressure from 0.001 to 10 bar and in a molar ratio of V:IV of from 0.3:1 to 3:1 to obtain as an intermediate product a gamma-vinylbutyrolactone of the formula ##STR3## where R.sup.1 and R.sup.2 have the abovementioned meaning; and then reacting said intermediate of the formula II with ammonia or a primary amine of the formulaR.sup.3 --NH.sub.2 III,where R.sup.3 has the abovementioned meaning, at a temperature of from 150.degree. to 350.degree. C. and under a pressure of from 0.1 to 200 bar.

    摘要翻译: 制备式I的5-乙烯基吡咯烷酮的方法,其中R1和R2各自为氢或烷基,R3优选为氢,但可进一步代表烷基,环烷基,芳基,烷基芳基,芳基烷基或5-至 含有1至3个氮原子和/或氧或硫原子的6元芳族或非芳族杂环基,该方法分两个步骤进行,首先使式(IV)的3-甲酰基丙酸酯与式 其中R1和R2各自为氢或C1-C8-烷基,R4为氢,烷基,环烷基,芳基,烷基芳基或芳基烷基,与式CH2 = CH-Mg-XV的卤化镁,其中X为氯 ,溴或碘,在-30℃至100℃的温度下,在0.001至10巴的压力下,V:IV的摩尔比为0.3:1至3:1,以获得中间体 产生式为“IMAGE”II的γ-乙烯基丁内酯,其中R1和R2具有上述含义; 然后使式II的中间体与式(III-NH2)III的氨或伯胺反应,其中R 3具有上述含义,在150℃至350℃的温度和0.1至 200吧。