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1. 发明授权

US5576432A Process for the manufacture of dihydropyrimidines 失效
标题翻译：二氢嘧啶的制备方法
公开(公告)号：US5576432A
公开(公告)日：1996-11-19
申请号：US363148
申请日：1994-12-23
申请人： Roger Lok , Antony J. Williams
发明人： Roger Lok , Antony J. Williams
IPC分类号： C07D498/04 , C07D513/04 , C07D517/04
CPC分类号： C07D513/04
摘要： A process of preparing a dihydropyrimidine compound of the structure (I): ##STR1## wherein R.sup.1 and R.sup.2 are bonded together to form an aromatic or heterocyclic ring, which may be substituted or unsubstituted, or are individually selected from the group consisting of hydrogen, or a substituted or unsubstituted aliphatic, carbocyclic, or heterocyclic group;R.sup.3, R.sup.4 and R.sup.5 are individually selected from the group consisting of hydrogen or a substituted or unsubstituted aliphatic, carbocyclic or heterocyclic group; andX represents the atoms necessary to form a 5 or 6 membered heterocyclic ring, and is selected from the group consisting of oxygen, sulfur, selenium, ##STR2## wherein R.sup.6, R.sup.7, and R.sup.8 are individually selected from the group consisting of a substituted or unsubstituted aliphatic, carbocyclic or heterocyclic group; comprising combining a compound (A) of the structure: ##STR3## wherein X, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are as previously defined, with a catalytic amount of a Group 11 or 12 metal cation catalyst at a temperature of less than about 50.degree. C. and in the presence of an organic solvent, to form compound (I).
摘要翻译：制备结构（I）的二氢嘧啶化合物的方法：其中R 1和R 2结合在一起以形成可被取代或未取代的芳族或杂环，或者分别选自氢，或取代或未取代的脂族，碳环或杂环基团; R 3，R 4和R 5分别选自氢或取代或未取代的脂族，碳环或杂环基; X表示形成5或6元杂环所必需的原子，并且选自氧，硫，硒，其中R6，R7和R8分别选自取代的或未取代的脂族，碳环或杂环基团; 包括将以下结构的化合物（A）与其中X，R 1，R 2，R 3，R 4，R 5，R 6，R 7和R 8如前所定义的化合物（A）与催化量的11或12族金属阳离子催化剂在低于约50℃的温度下和在有机溶剂存在下反应形成化合物（I）。

2. 发明授权

US06040129A Photographic emulsion having an improved speed, photographic element containing said emulsion, and method 失效
标题翻译：具有改善速度的照相乳剂，含有所述乳液的照相元件和方法
公开(公告)号：US06040129A
公开(公告)日：2000-03-21
申请号：US288900
申请日：1999-04-09
申请人： Stephen A. Godleski , David A. Dickinson , Antony J. Williams
发明人： Stephen A. Godleski , David A. Dickinson , Antony J. Williams
IPC分类号： G03C1/08 , G03L1/08
CPC分类号： G03C1/08
摘要： A photographic emulsion comprising dispersed in a binder sensitized silver halide grains wherein the emulsion is sensitized from an organometallic compound of formula:(R).sub.n (X).sub.m M (I)wherein M is a metal selected from the group consisting of lead, tin, boron, bismuth and thallium, each R is independently an alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, an alkenyl group or a alkynyl group, each X is independently halogen, hydroxy, or alkoxy, n is 1 to 4 and m is 0 to 3, with the proviso that when M is lead or tin, n is 1 to 4 and m+n is 4, when M is boron or bismuth, n is 1 to 3 and m+n is 3 and when M is thallium, either n is 1 and m is 0, or n is 1 to 3 and n+m is 3.
摘要翻译：包含分散在粘合剂敏化卤化银颗粒中的照相乳剂，其中所述乳液由下式的有机金属化合物敏化：（R）n（X）mM（I）其中M是选自铅，锡，硼，铋和铊，每个R独立地为烷基，环烷基，芳基，杂环基，烯基或炔基，每个X独立地为卤素，羟基或烷氧基，n为1至4 m为0〜3，条件是当M为铅或锡时，n为1〜4，m + n为4，当M为硼或铋时，n为1〜3，m + n为3， M为铊，n为1，m为0，n为1〜3，n + m为3。

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