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1. 发明授权

US4259499A Method for preparing 2-sulfochloride benzoates and the use of same in the preparation of saccharin 失效
标题翻译：制备2-磺酰氯苯甲酸酯的方法及其在制备糖精中的应用
公开(公告)号：US4259499A
公开(公告)日：1981-03-31
申请号：US899498
申请日：1978-04-24
申请人： Carmine A. DiPippo
发明人： Carmine A. DiPippo
IPC分类号： C07D275/06 , C07D327/04
CPC分类号： C07D275/06 , C07D327/04
摘要： A method of preparing 2-sulfochloride benzoates which comprises diazotizing any anthranilate to form a 2-diazonium chloride benzoate and thereafter reacting said 2-diazonium chloride benzoate with sulfur dioxide to form a 2-sulfochloride benzoate. The invention also provides for the total synthesis of saccharin which comprises pyrolyzing a 2-sulfochloride benzoate to form an o-sulfobenzoic anhydride and then ammonolyzing the o-sulfobenzoic anhydride to saccharin which is free of bitter tasting contaminants from such reactants.
摘要翻译：一种制备2-磺酰氯苯甲酸酯的方法，其包括将任何邻氨基苯甲酸重氮化以形成2-重氮氯化苯甲酸酯，然后使所述2-重氮氯化苯甲酸酯与二氧化硫反应，形成2-磺酰氯苯甲酸酯。本发明还提供糖精的总合成，其包括将2-磺酰氯苯甲酸酯热解形成邻磺基苯甲酸酐，然后将邻磺基苯甲酸酐氨化为糖精，其不含有这样的反应物的苦味污染物。

2. 发明授权

US4482489A Light-sensitive diazonium trifluoromethane sulfonates 失效
标题翻译：感光重氮三氟甲烷磺酸盐
公开(公告)号：US4482489A
公开(公告)日：1984-11-13
申请号：US441690
申请日：1982-11-15
申请人： Carmine A. DiPippo
发明人： Carmine A. DiPippo
IPC分类号： G03C1/54 , G03C1/56 , C07C113/04 , C07C143/08 , C07D295/12 , G03C1/52
CPC分类号： G03C1/54 , G03C1/56
摘要： Provided are light-sensitive diazonium compounds known as diazonium trifluoromethane sulfonates, which have the structural formula: ##STR1## wherein D --N.dbd.N-- is the cation of a light-sensitive, aromatic diazonium compound. The diazonium trifluoromethane sulfonates are prepared as the reaction product of trifluoromethyl sulfonic acid, or a salt thereof, and a diazonium compound. Said diazonium trifluoromethane sulfonates find utility in diazography formulation for both positive- and negative-working diazotype photoreproduction systems, and as latent polymerization initiators activatable by irradiation.
摘要翻译：提供称为重氮三氟甲磺酸盐的感光重氮化合物，其具有以下结构式：其中D -N = N-是光敏芳族重氮化合物的阳离子。制备重氮三氟甲烷磺酸盐作为三氟甲磺酸或其盐与重氮化合物的反应产物。所述重氮三氟甲烷磺酸盐可用于重氮基印记制剂中用于正负重氮染料的光复制体系，以及作为通过辐射活化的潜在聚合引发剂。

3. 发明授权

US4289839A Negative image diazography formulation with acid labile coupler, diazonium compound and carboxylic acid anhydride 失效
标题翻译：酸性偶联剂，重氮化合物和羧酸酐的负像重氮制剂
公开(公告)号：US4289839A
公开(公告)日：1981-09-15
申请号：US121883
申请日：1980-02-15
申请人： Carmine A. DiPippo
发明人： Carmine A. DiPippo
IPC分类号： G03C1/54 , G03C1/58 , G03C1/61 , G03C1/60
CPC分类号： G03C1/54 , G03C1/58 , G03C1/61
摘要： Negative-working diazography material is comprised of (i) at least one diazonium compound, (ii) at least one acid labile enolic, preferably phenolic blocked-coupler adapted to be converted in the presence of acid to an active azo-coupling component, (iii) at least one light-sensitive acid progenitor, and (iv) at least one carboxylic acid anhydride. The diazonium compound can itself concurrently function as the acid progenitor, e.g., when complexed with a Lewis acid. Upon imagewise exposure to light, acid catalyst is photochemically liberated, thus unblocking coupler molecules such that dye image forms under alkaline developing conditions only where the material has been irradiated. Under alkaline developing conditions, the anhydride reacts to render the unused diazo component remaining in the unexposed areas inactive.
摘要翻译：负极重氮基材料包括（i）至少一种重氮化合物，（ii）适于在酸存在下转化成活性偶氮偶合组分的至少一种酸不稳定的烯醇，优选酚封闭的偶联剂（ iii）至少一种光敏酸性祖细胞，和（iv）至少一种羧酸酐。重氮化合物本身可以同时用作酸性祖细胞，例如当与路易斯酸络合时。在成像曝光后，光催化剂释放出酸催化剂，从而阻断成色剂分子，使染料图像在碱性显影条件下仅在材料被照射下形成。在碱性显影条件下，酸酐反应使残留在未曝光区域中的未使用的重氮组分不起作用。

4. 发明授权

US4042600A Pyrolysis of 2-sulfochloride benzoates 失效
标题翻译： 2-磺酰氯苯甲酸酯的热解
公开(公告)号：US4042600A
公开(公告)日：1977-08-16
申请号：US620281
申请日：1975-10-07
申请人： Carmine A. DiPippo
发明人： Carmine A. DiPippo
IPC分类号： C07D275/06 , C07D327/04 , C07C19/02 , C07C25/14
CPC分类号： C07D275/06 , C07D327/04
摘要： Ortho-sulfobenzoic anhydride is synthesized by pyrolysis of the 2-sulfochloride benzoates. The benzoate intermediates are readily prepared by reacting either the esters of dithiodibenzoic acid with chloride water or the 2-diazonium chloride benzoates with sulfur dioxide. The invention also provides for the total synthesis of saccharin, free of bitter tasting contaminants, from such reactants, the ultimate step in such synthesis being the ammonolysis of the o-sulfobenzoic anhydride.
摘要翻译：邻磺基苯甲酸酐通过2-磺酰氯苯甲酸酯的热解合成。苯甲酸酯中间体可以通过使二硫代二苯甲酸的酯与氯化物水或2-重氮氯化苯甲酸酯与二氧化硫反应来制备。本发明还提供了从这种反应物中没有苦味污染物的糖精的总合成，这种合成中的最终步骤是邻磺基苯甲酸酐的氨解。

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