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    • 4. 发明授权
    • Sulfonium salt, photoacid generator, and photocurable composition and cured body thereof
    • 锍盐,光酸产生剂和可光固化组合物及其固化体
    • US08278030B2
    • 2012-10-02
    • US12989549
    • 2009-04-27
    • Issei SuzukiHideki Kimura
    • Issei SuzukiHideki Kimura
    • G03F7/029C07D495/00C07D335/04C08G59/68C08F2/50
    • C08F2/50B33Y70/00C07D335/16
    • An object of the present invention is to provide a sulfonium salt that has sufficient photosensitivity by active energy rays, such as visible light, ultraviolet rays, electron beams, and X-rays. The present invention is a sulfonium salt represented by formula (1). It is noted that R1 is a group represented by formula (2); R2 and R3 each represent an aryl group having 6 to 30 carbon atoms, a heterocyclic hydrocarbon group having 4 to 30 carbon atoms, an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, or an alkynyl group having 2 to 30 carbon atoms; X− represents a monovalent polyatomic anion; R4 to R6 each represent an alkyl group, or the like; k represents an integer of 0 to 4; m represents an integer of 0 to 3; n represents an integer of 0 to 4; and A represents a group represented by —S—, —O—, —SO—, —SO2—, or —CO—.
    • 本发明的目的是提供一种通过活性能量射线例如可见光,紫外线,电子束和X射线具有足够光敏性的锍盐。 本发明是由式(1)表示的锍盐。 注意,R1是由式(2)表示的基团; R 2和R 3各自表示碳原子数6〜30的芳基,碳原子数4〜30的杂环烃基,碳原子数1〜30的烷基,碳原子数2〜30的烯基或炔基 具有2至30个碳原子; X-表示单价多原子阴离子; R4〜R6各自表示烷基等; k表示0〜4的整数, m表示0〜3的整数, n表示0〜4的整数, A表示由-S - , - O - , - SO - , - SO 2 - 或-CO-表示的基团。
    • 9. 发明授权
    • Process for the preparation of 4,4-dimethyl-6-ethynylthiochroman
    • 制备4,4-二甲基-6-乙炔基二氢苯并噻喃的方法
    • US06963002B2
    • 2005-11-08
    • US10883880
    • 2004-07-02
    • Bobba Venkata Siva KumarVishvas Dattatraya PatilChangdev Namdev RautShekhar Bhaskar BhirudBatchu Chandrasekhar
    • Bobba Venkata Siva KumarVishvas Dattatraya PatilChangdev Namdev RautShekhar Bhaskar BhirudBatchu Chandrasekhar
    • C07D335/06C07D335/04
    • C07D335/06
    • An improved process for the preparation of key intermediates for tazarotene, 4,4-dimethyl-6-ethynylthiochroman, is provided comprising (a) reacting 4,4-dimethyl-6-acetylthiochroman of the formula with an acid chloride and an amido-group containing compound of the general formula wherein R is hydrogen or a hydrocarbyl of from 1 to 15 carbon atoms and R1 and R2 can be the same or different and are hydrocarbyls of from 1 to 15 carbon atoms or R1 and R2 together with the nitrogen atom to which they are bonded are joined together to form a heterocyclic group, optionally containing one or more additional heterocyclic atoms, or one of R1 and R2 together with the nitrogen atom to which it bonded are joined together with the carbonyl radical to form a heterocyclic group, optionally containing one or more additional heterocyclic atoms to form a β-chloro vinyl carbonyl compound intermediate of the general formula wherein R has the aforestated meanings; and (b) reacting the β-chloro vinyl carbonyl compound intermediate with an alkali metal to provide the 4,4-dimethyl-6-ethynylthiochroman.
    • 提供了一种用于制备他扎罗汀4,4-二甲基-6-乙炔基二氢苯并噻喃的关键中间体的改进方法,其包括(a)使下式的4,4-二甲基-6-乙酰基二氢苯并二氢吡喃与酰氯和酰氨基 其中R是氢或1至15个碳原子的烃基,R 1和R 2可以相同或不同,并且是烃基的通式 1至15个碳原子或R 1和R 2与它们所键合的氮原子一起连接在一起形成杂环基,任选地含有一个或多个 另外的杂环原子或R 1和R 2中的一个与其键合的氮原子一起与羰基连接在一起形成杂环基,任选地含有 一个或多个另外的杂环原子以形成通式的β-氯乙烯基羰基化合物中间体其中R具有t 他提到意义 和(b)使β-氯乙烯基羰基化合物中间体与碱金属反应,得到4,4-二甲基-6-乙炔基二氢苯并噻喃。