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公开(公告)号:US3931191A
公开(公告)日:1976-01-06
申请号:US384440
申请日:1973-08-01
IPC分类号: C07D213/08 , C07D213/09 , C07D239/06 , C07D213/04
CPC分类号: C07D213/08 , C07D239/06
摘要: A process of converting 2,3,4,5-tetrahydropyrimidines containing at least 1 hydrogen in the 2-position and at least one methylene group in the 4-position to corresponding pyridines which comprises heating said tetrahydropyrimidines to a temperature sufficiently high to remove ammonia and hydrogen so as to form said pyridines.
摘要翻译: 将2-位上含有至少1个氢的2,3,4,5-四氢嘧啶和4-位上的至少一个亚甲基转化成相应的吡啶的方法,包括将所述四氢嘧啶加热到足够高的温度以除去氨 和氢,以形成所述吡啶。
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公开(公告)号:US5252289A
公开(公告)日:1993-10-12
申请号:US2532
申请日:1993-01-11
IPC分类号: A61K39/00 , C07K14/11 , C07K14/16 , C12N9/12 , C12N9/24 , C12N15/10 , C12N15/11 , C12N15/86 , C23F11/12
CPC分类号: C12Y302/01018 , C12N15/10 , C12N15/11 , C12N9/127 , C12N9/2402 , A61K2039/5256 , A61K39/00 , C01P2006/12 , C01P2006/80 , Y10S507/939
摘要: Water-soluble 1,2-dithiole-3-thione derivatives are prepared by reacting a polyoxyalkylated starting material with sulfur. These derivatives are useful as corrosion inhibitors, particularly in aqueous environments.
摘要翻译: 水溶性1,2-二硫杂环戊烯-3-硫酮衍生物通过使聚氧烷基化原料与硫反应制备。 这些衍生物可用作腐蚀抑制剂,特别是在水性环境中。
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公开(公告)号:US4973710A
公开(公告)日:1990-11-27
申请号:US399738
申请日:1989-08-28
IPC分类号: C07D339/04 , C09K8/54
CPC分类号: C09K8/54 , C07D339/04
摘要: Water-soluble 1,2-dithiole-3-thione derivatives are prepared by reacting a polyoxyalkylated starting material with sulfur. These derivatives are useful as corrosion inhibitors, particularly in aqueous environments.
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公开(公告)号:US4622404A
公开(公告)日:1986-11-11
申请号:US320050
申请日:1981-11-10
IPC分类号: C07D233/20 , C09K8/54 , C23F11/16 , C23G1/06
CPC分类号: C07D233/20 , C09K8/54 , C23F11/16 , C23G1/065
摘要: This invention relates to the following:(1) An amino-containing composition characterized by polymercapto groups,(2) A polyamino-containing composition characterized by mercapto or polymercapto groups,(3) A composition characterized by the presence ofA. a mercapto or polymercapto groups, andB. a nitrogen-containing group characterized by at least one of the following:1. an amido or a polyamido group,2. a cyclic amidine or a polycyclic amidine group,3. an epihalohydrin-derived amino-containing group.This invention also relates to the use of the above compositions as corrosion inhibitors.
摘要翻译: 本发明涉及以下:(1)以聚合物巯基为特征的含氨基组合物,(2)以巯基或聚合物巯基为特征的含聚氨基的组合物,(3)一种组合物,其特征在于存在A.巯基或 聚合巯基和B.含氮基团,其特征在于以下至少一种:1.酰胺基或聚酰胺基,环状脒或多环脒基,3.表卤代醇衍生的含氨基的基团 。 本发明还涉及上述组合物作为腐蚀抑制剂的用途。
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公开(公告)号:US4616085A
公开(公告)日:1986-10-07
申请号:US444417
申请日:1982-11-24
IPC分类号: C07D233/20 , C09K8/54 , C23F11/16 , C23G1/06 , C07D239/02 , C07D233/04
CPC分类号: C23F11/16 , C07D233/20 , C09K8/54 , C23G1/065
摘要: This invention relates to the following:(1) An amino-containing composition characterized by polymercapto groups,(2) A polyamino-containing composition characterized by mercapto or polymercapto groups,(3) A composition characterized by the presence ofA. a mercapto or polymercapto groups, andB. a nitrogen-containing group characterized by at least one of the following:1. an amido or a polyamido group,2. a cyclic amidine or a polycyclic amidine group,3. an epihalohydrin-derived amino-containing group.This invention also relates to the use of the above compositions as corrosion inhibitors.
摘要翻译: 本发明涉及以下:(1)以聚合物巯基为特征的含氨基组合物,(2)以巯基或聚合物巯基为特征的含聚氨基的组合物,(3)一种组合物,其特征在于存在A.巯基或 聚合巯基和B.含氮基团,其特征在于以下至少一种:1.酰胺基或聚酰胺基,环状脒或多环脒基,3.表卤代醇衍生的含氨基的基团 。 本发明还涉及上述组合物作为腐蚀抑制剂的用途。
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公开(公告)号:US4220785A
公开(公告)日:1980-09-02
申请号:US937627
申请日:1978-08-25
IPC分类号: C07D211/82 , C07D213/08 , C07D213/09 , C07D213/20 , C23F11/14 , C07D213/06
CPC分类号: C07D213/08 , C07D211/82 , C07D213/20 , C23F11/149
摘要: This invention relates to substituted pyridines prepared by reacting aldehydes, amines, lower carboxylic acids such as acetic acid in the presence of oxygen. The N-substituted pyridinium salts formed can be converted to pyridines by thermal dealkylation.The reactions can be summarized by the following equations: ##STR1##
摘要翻译: 本发明涉及通过使醛,胺,低级羧酸如乙酸在氧气存在下反应制备的取代的吡啶。 形成的N-取代吡啶鎓盐可以通过热脱烷基转化为吡啶。 反应可以通过以下等式来总结:
+ TR -
公开(公告)号:US4179570A
公开(公告)日:1979-12-18
申请号:US970415
申请日:1978-12-18
IPC分类号: C07D487/08 , C07D213/16 , C07D211/70
CPC分类号: C07D487/08
摘要: A process of preparing alkyl (or aralkyl) pyridines and N-substituted alkyl (or aralkyl) dihydropyridines which comprises treating a2,5,6,8,9-pentaalkyl (or aralkyl) substituted 1,3,7-triazabicyclo (3,3,1) non-3-ene with a Lewis acid.
摘要翻译: 制备烷基(或芳烷基)吡啶和N-取代的烷基(或芳烷基)二氢吡啶的方法,其包括处理a2,5,6,8,9-五烷基(或芳烷基)取代的1,3,7-三氮杂双环(3,3 ,1)具有路易斯酸的非-3-烯。
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公开(公告)号:US4163646A
公开(公告)日:1979-08-07
申请号:US755535
申请日:1976-12-30
IPC分类号: A01N43/40 , A01N43/54 , A01N47/16 , C07D213/06 , C07D213/08 , C07D213/09 , C07D213/16 , C07D239/06 , C07D239/70 , C07D239/74 , C10L1/222 , C10L1/22
CPC分类号: C07D213/06 , A01N43/40 , A01N43/54 , A01N47/16 , C07D213/08 , C07D213/16 , C07D239/06 , C07D239/70 , C07D239/74 , C10L1/2222
摘要: This invention relates to the hydrogenation of tetrahydropyrimidines to yield linear N-substituted diamines which can be reacted with carbonyls to form imines, which imines can be reduced to N,N'-substituted diamines as illustrated by N,N'-substituted 2,4-diamino-2-substituted pentanes. The products of this invention are useful as fuel additives.
摘要翻译: 本发明涉及四氢嘧啶的氢化以产生可与羰基反应形成亚胺的直链N-取代二胺,亚胺可以还原成N,N'-取代的二胺,如N,N'-取代的2,4 - 二氨基-2-取代的戊烷。 本发明的产品可用作燃料添加剂。
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29.
公开(公告)号:US4104249A
公开(公告)日:1978-08-01
申请号:US691530
申请日:1976-06-01
IPC分类号: C07D239/70 , C08K5/3462 , C08K5/3465 , C08K5/34 , C07D239/02 , C07D239/06
CPC分类号: C08K5/3462 , C07D239/70 , C08K5/3465 , Y10S524/929
摘要: This invention relates to the use of hexahydropyrimidines (HHP) as anti-oxidants for elastic materials such as rubber.The preferred hexahydropyrimidines contain at least one cycloalkylene or substituted cycloalkylene group and most preferably three cycloalkylene groups as illustrated by 2,2,4,4-dipentamethylene-5,6-tetramethylene hexahydropyrimidine.
摘要翻译: 本发明涉及六氢嘧啶(HHP)作为弹性材料如橡胶的抗氧化剂的用途。
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公开(公告)号:US3959313A
公开(公告)日:1976-05-25
申请号:US471285
申请日:1974-05-20
IPC分类号: C07D339/04
CPC分类号: C07D339/04
摘要: This invention relates to the oxidation of sterically hindered 1,2-dithiole-3-thiones with nitric acid to form the corresponding 1,2-dithiolium compounds. For example, when 4-neopentyl-5-tert-butyl-1,2-dithiole-3-thione is oxidized with nitric acid, 4-neopentyl 5-tert-butyl 1,2-dithiolium hydrogen sulfate is formed. When non-sterically hindered 1,2-dithiole-3-thiones are oxidized with nitric acid, decomposition rather than dithiolium formation occurs.
摘要翻译: 本发明涉及用硝酸氧化空间位阻的1,2-二硫杂环戊烯-3-硫酮以形成相应的1,2-二硫鎓鎓化合物。 例如,当4-硝基-5-叔丁基-1,2-二硫杂环戊烯-3-硫酮用硝酸氧化时,形成4-新戊基5-叔丁基1,2-二硫醇氢硫酸氢盐。 当非空间位阻的1,2-二硫杂环戊烯-3-硫酮被硝酸氧化时,会发生分解而不是二硫鎓的形成。
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