Producing bis(alicyclic) thioethers
    3.
    发明授权
    Producing bis(alicyclic) thioethers 失效
    生产双(脂环族)硫醚

    公开(公告)号:US5187285A

    公开(公告)日:1993-02-16

    申请号:US571071

    申请日:1990-08-22

    申请人: G. Patrick Stahly

    发明人: G. Patrick Stahly

    CPC分类号: C07D209/48 C07D307/89

    摘要: 3,3'-Thiobis(2,5-dihydrothiophene-1,1-dioxides) on heating with a reactive Diels-Alder dienophile undergo a reaction producing thioethers having two six-membered alicyclic rings in the molecule, such as 4,4'-thiobis(3,6-dihydrophthalic acids) or the esters, anhydrides or imides thereof, and 4,4'-thiobis-(1,2,3,6-tetrahydrophthalic acids) or the esters, anhydrides or imides thereof. Both rings of the dihydrothiophene dioxides participate in the reaction, apparently by forming a tetraene structure which co-reacts with two equivalents of the dienophile to form an adduct in which each six-membered ring has one or two olefinic double bonds. During the course of the reaction, the thioether bridge remains intact. Some of the bis(alicyclic) thioethers are readily converted to the corresponding bis(aromatic)thioethers by use of known aromatization methods and systems. Various utilities for the products of the foregoing reactions are described.

    摘要翻译: 3,3'-硫代双(2,5-二氢噻吩-1,1-二氧化物)在与反应性狄尔斯 - 阿尔德亲二烯体加热时进行反应,产生在分子中具有两个六元脂环的硫醚,例如4,4' - 硫代双(3,6-二氢邻苯二甲酸)或其酯,酸酐或酰亚胺,以及4,4'-硫代双(1,2,3,6-四氢邻苯二甲酸)或其酯,酸酐或酰亚胺。 二环噻吩二氧化物的两个环参与反应,显然是通过形成与两当量的亲二烯体共同反应形成其中每个六元环具有一个或两个烯属双键的加合物的四烯结构。 在反应过程中,硫醚桥保持完好。 通过使用已知的芳构化方法和体系,一些双(脂环族)硫醚容易转化成相应的双(芳族)硫醚。 描述了上述反应产物的各种用途。

    Isoimide containing oligomers
    5.
    发明授权
    Isoimide containing oligomers 失效
    含异氰酸酯的低聚物

    公开(公告)号:US4438273A

    公开(公告)日:1984-03-20

    申请号:US286317

    申请日:1981-07-24

    申请人: Abraham L. Landis

    发明人: Abraham L. Landis

    CPC分类号: C08G73/1089

    摘要: A class of relatively low molecular-weight oligomers containing at least one isoimide group and terminal groups capable of undergoing an addition polymerization reaction. The oligomers of the present invention are characterized by excellent solubility in common solvents and a melting temperature considerably lower than their cure temperature, thus enabling the oligomers to be formed into cured polymers more slowly and at lower temperatures, all without the evolution of deletrious gases.

    摘要翻译: 一类含有至少一个异亚酰基基团和能够进行加成聚合反应的端基的低分子量低聚物。 本发明的低聚物的特征在于在普通溶剂中的溶解性优异,熔融温度明显低于其固化温度,从而使得低聚物能够更缓慢地形成固化的聚合物,而且在较低的温度下也能形成固化的聚合物,而不会产生无害气体。

    Substituted 3,6-diaminophthalides
    7.
    发明授权
    Substituted 3,6-diaminophthalides 失效
    取代的3,6-二氨基苯酞

    公开(公告)号:US4191690A

    公开(公告)日:1980-03-04

    申请号:US942840

    申请日:1978-09-15

    申请人: Peter Burri

    发明人: Peter Burri

    摘要: Substituted 3,6-diaminophthalides of the formula ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 independently represents alkyl of not more than 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or represents cycloalkyl, benzyl, or benzyl which is substituted by halogen, lower alkyl or lower alkoxy, and R.sub.1 can also be hydrogen and R.sub.3 can also be phenyl, or R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, represent a 5- or 6-membered heterocyclic radical and the ring A is unsubstituted or substituted or contains a fused, unsubstituted or substituted benzene or heterocyclic ring.These compounds are suitable in particular for use as color formers in pressure-sensitive or heat-sensitive recording materials.

    摘要翻译: 取代的式“IMAGE”的3,6-二氨基苯酞,其中R1,R2和R3各自独立地表示未被取代或被卤素,羟基,氰基或低级烷氧基取代的不超过12个碳原子的烷基,或代表环烷基,苄基 或被卤素,低级烷基或低级烷氧基取代的苄基,R 1也可以是氢,R 3也可以是苯基,或者R 1和R 2与它们所连接的氮原子一起代表5-或6- 环A是未取代的或取代的或含有稠合,未取代或取代的苯或杂环。 这些化合物特别适用于压敏或热敏记录材料中的成色剂。

    3-(9-Julolidinyl)-3-(diphenylamino)phthalides
    8.
    发明授权
    3-(9-Julolidinyl)-3-(diphenylamino)phthalides 失效
    3-(9-奎宁环)-3-(二苯基氨基)苯并二氮杂环己烷

    公开(公告)号:US4168378A

    公开(公告)日:1979-09-18

    申请号:US821927

    申请日:1977-08-04

    摘要: 3-[4-Disubstituted-amino)phenyl] or (9-julolidinyl)-3-(diphenylamino)phthalides useful as color formers in pressure-sensitive and thermal marking systems are prepared by reaction of 2-[4-disubstituted-amino)benzoyl] or (9-julolidinyl-carbonyl)benzoic acids with diphenylamines.

    摘要翻译: 2- [4-二取代 - 氨基]苯基]或(9-三环基茚基)-3-(二苯基氨基)苯并二氮杂苯二甲酸酯可用作压敏和热标记体系中的成色剂, 苯甲酰基]或(9-多环烯基 - 羰基)苯甲酸与二苯胺。

    Analgesics obtained by reacting a primary amine and an aldehyde
    9.
    发明授权
    Analgesics obtained by reacting a primary amine and an aldehyde 失效
    通过伯胺和醛反应获得的镇痛药

    公开(公告)号:US3947587A

    公开(公告)日:1976-03-30

    申请号:US327236

    申请日:1973-01-26

    摘要: Products having analgesic and antipyretic activity are provided having the formula:R -- Z -- R'in which each of R and R', which may be the same or different, represents a phenyl or pyridyl radical which is optionally substituted by at least one substituent selected from a halogen atom, --NO.sub.2, --CONH.sub.2 --, --OC.sub.2 H.sub.5, OCH.sub.3, --CH.sub.3, --COOC.sub.2 H.sub.5, --COOCH.sub.3, --COOH and --OCH.sub.2 --COOH radical; Z represents a radical selected from --CH=N-- and >CH--NH-- in which the radical >CH-- of said amino group forms part of a heterocyclic structure of the formula: ##EQU1## in which the two carbon atoms connected by a double bond form part of the radical R or R'. Specific compounds include 2-(2'-carboxamido-anilino)-o-phthalide and 2-(2' or 4'-ethoxy-anilino)-o-phthalide.

    摘要翻译: 具有止痛和解热活性的产品具有下式: