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公开(公告)号：US5401885A
公开(公告)日：1995-03-28
申请号：US70563
申请日：1993-06-01
IPC分类号： C07C41/50 , C07C41/56 , C07C41/60 , C07C43/305 , C07C43/32 , C07C257/06
CPC分类号： C07C257/06 , C07C41/56 , C07C41/60 , C07C2101/14 , C07C2101/18
摘要： Ortho esters of the structure ##STR1## wherein R.sub.1 and R.sub.2 are different or the same alkyl moieties and can be a saturated, unsaturated, branched, unbranched or cyclic alkyl moiety of 1-3 carbon atoms, are prepared by first anhydrously reacting hydrogen cyanide or a hydrogen cyanide derivative with a secondary alkanol and hydrogen chloride in the presence of an inert organic solvent. Upon the formation of the resulting imino ether hydrochloride, more secondary alkanol is added to form the ortho esters (I). 1,1-Dialkoxycycloalkanes of the structure ##STR2## wherein R.sub.1 and R.sub.2 correspond to R.sub.1 and R.sub.2 of structure (I), and n is an integer from 4 to 9, are prepared by reacting with the imino ether hydrochloride more secondary alkanol and a cycloalkanone having 5 to 10 carbon atoms.
摘要翻译： 其中R1和R2不同或相同的烷基部分并且可以是1-3个碳原子的饱和的，不饱和的，支链的，无支链的或环状烷基部分的结构的正构酯通过首先无水反应 氰化氢或氰化氢衍生物与仲烷醇和氯化氢在惰性有机溶剂存在下反应。 在形成所得的亚胺醚盐酸盐后，加入更多的仲烷醇以形成原酸酯（I）。 其中R1和R2对应于结构（I）的R1和R2，n为4至9的整数的结构式（II）的1,1-二烷氧基环烷烃通过与亚胺醚盐酸盐反应制备更多次级 链烷醇和具有5至10个碳原子的环烷酮。
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公开(公告)号：US5550299A
公开(公告)日：1996-08-27
申请号：US327626
申请日：1994-10-24
IPC分类号： C07C41/50 , C07C41/56 , C07C41/60 , C07C43/305 , C07C43/32 , C07C257/06
CPC分类号： C07C257/06 , C07C41/56 , C07C41/60 , C07C2101/14 , C07C2101/18
摘要： Ortho esters of the structure ##STR1## wherein R.sub.1 and R.sub.2 are different or the same alkyl moieties and can be a saturated, unsaturated, branched, unbranched or cyclic alkyl moiety of 1-3 carbon atoms, are prepared by first anhydrously reacting hydrogen cyanide or a hydrogen cyanide derivative with a secondary alkanol and hydrogen chloride in the presence of an inert organic solvent. Upon the formation of the resulting imino ether hydrochloride, more secondary alkanol is added to form the ortho esters (I). 1,1-Dialkoxycycloalkanes of the structure ##STR2## wherein R.sub.1 and R.sub.2 correspond to R.sub.1 and R.sub.2 of structure (I), and n is an integer from 4 to 9, are prepared by reacting with the imino ether hydrochloride more secondary alkanol and a cycloalkanone having 5 to 10 carbon atoms.
摘要翻译： 其中R1和R2不同或相同的烷基部分并且可以是1-3个碳原子的饱和的，不饱和的，支链的，无支链的或环状烷基部分的结构的正构酯通过首先无水反应 氰化氢或氰化氢衍生物与仲烷醇和氯化氢在惰性有机溶剂存在下反应。 在形成所得的亚胺醚盐酸盐后，加入更多的仲烷醇以形成原酸酯（I）。 其中R1和R2对应于结构（I）的R1和R2，n为4至9的整数的结构式（II）的1,1-二烷氧基环烷烃通过与亚胺醚盐酸盐反应制备更多次级 链烷醇和具有5至10个碳原子的环烷酮。
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公开(公告)号：US5852207A
公开(公告)日：1998-12-22
申请号：US898571
申请日：1997-07-22
IPC分类号： B01J31/02 , C07B61/00 , C07C253/00 , C07C253/14 , C07C255/18 , C07C261/02 , C07C229/00
CPC分类号： C07C261/02 , Y02P20/584
摘要： Alkyl, aralkyl or aryl cyanoformate esters having from one to 20 carbon atoms are prepared by anhydrously reacting stoichiometric amounts of the corresponding alkyl, aralkyl or aryl haloformate and an organosilyl nitrile in the presence of a catalytic amount of a tertiary amine base, preferably 1,4-diazabicyclo�2.2.2!octane, in the absence or presence of an inert solvent. The reaction is conducted at a temperature of from about -30.degree. C. to 70.degree. C., preferably at from about 5.degree. C. to 30.degree. C.
摘要翻译： 通过在催化量的叔胺碱存在下，使化学计量的相应的烷基，芳烷基或芳基卤代甲酸酯和有机甲硅烷基腈无水反应制备具有1至20个碳原子的烷基，芳烷基或芳基氰甲酸酯， 4-二氮杂双环[2.2.2]辛烷，在惰性溶剂存在下或不存在下进行。 反应在约-30℃至70℃，优选约5℃至30℃的温度下进行。
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公开(公告)号：US06271410B1
公开(公告)日：2001-08-07
申请号：US09589561
申请日：2000-06-06
IPC分类号： C07C25500
CPC分类号： C07C253/30 , C07C2601/14 , C07C255/19
摘要： C3-12 alkyl, substituted alkyl, alkenyl and cycloalkyl cyanoacetates are prepared by an efficient and simplified one-step process in which a small molar excess of the corresponding alcohol, i.e., C3-12 alkyl, substituted alkyl, alkenyl or cycloalkenyl alcohol is reacted with crystalline cyanoacetic acid, or a concentrated aqueous solution of cyanoacetic acid, in the presence of an acid catalyst, such as, for example, methanesulfonic acid, p-toluenesulfonic acid, sulfuric acid and phosphoric acid at a temperature in the range of from about 60° C. to about 150° C., in accordance with the following reaction: CNCH2COOH+R—OH→(cat)CNCH2COOR+H2O (I) where R is a C3-12 alkyl, substituted alkyl, alkenyl or cycloalkyl.
摘要翻译： C3-12烷基，取代的烷基，烯基和环烷基氰基乙酸盐通过有效和简化的一步法制备，其中将小摩尔过量相应的醇，即C 3-12烷基，取代的烷基，烯基或环烯基醇反应 在氰化乙酸的浓度水溶液中，在酸催化剂例如甲磺酸，对甲苯磺酸，硫酸和磷酸的存在下，在约 60℃至约150℃，根据以下反应：其中R是C3-12烷基，取代的烷基，烯基或环烷基。
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公开(公告)号：US06235944B1
公开(公告)日：2001-05-22
申请号：US09234572
申请日：1999-01-21
IPC分类号： C07C4128
CPC分类号： C07C41/01 , C07C2601/10 , C07C2601/16 , C07C43/188 , C07C43/16
摘要： The present invention relates to a general synthesis for producing secondaryalkoxy-1-alkenes in commercial quantities in good yields by reacting cyclic and acyclic ketones and the corresponding alcohol with a secondary alkyl orthoformate ester in the presence of an acid catalyst, a Lewis acid, ferric chloride being preferred, and recovering the produce as a liquid of high purity.
摘要翻译： 本发明涉及通过在酸催化剂，路易斯酸，三价铁的存在下使环状和无环酮与相应的醇与原烷基甲酸仲烷基酯反应，以良好的产率生产二烷氧基-1-烯烃的一般合成方法 优选氯化物，并回收作为高纯度液体的产物。
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公开(公告)号：US5258534A
公开(公告)日：1993-11-02
申请号：US014231
申请日：1993-02-05
CPC分类号： C07F7/0823
摘要： Trialkylsilyl nitrile is prepared by anhydrously reacting stoichiometric amounts of trialkylsilyl halide, hexaalkyldisilazane or trialkylsilyl amine, and hydrogen cyanide, in the absence or presence of a solvent or inert gas atmosphere. No catalyst is necessary, and the reaction preferably is performed at a temperature of from 5.degree. C. to 25.degree. C.
摘要翻译： 在不存在或不存在溶剂或惰性气体气氛的情况下，通过使化学计量的三烷基甲硅烷基卤化物，六烷基二硅氮烷或三烷基甲硅烷基胺和氰化氢无水反应来制备三烷基甲硅烷基腈。 不需要催化剂，反应优选在5〜25℃的温度下进行。
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公开(公告)号：US5594156A
公开(公告)日：1997-01-14
申请号：US516644
申请日：1995-08-18
CPC分类号： C07F7/188
摘要： A process for preparing silyl cyanohydrins that comprises reacting an aldehyde or ketone with a hydrogen cyanide, a trisubstituted halosilane and a correspondingly substituted disilazane or silyl amine.
摘要翻译： 制备甲硅烷基氰醇的方法，其包括使醛或酮与氰化氢，三取代的卤代硅烷和相应取代的二硅氮烷或甲硅烷基胺反应。
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公开(公告)号：US06353126B1
公开(公告)日：2002-03-05
申请号：US09345304
申请日：1999-06-30
申请人： Chitoor S. Subramaniam , Zheng Wang
发明人： Chitoor S. Subramaniam , Zheng Wang
IPC分类号： C07C25314
CPC分类号： C07C253/20 , C07C255/09
摘要： An improved process for the commercial production of malononitrile by the dehydration of cyanoacetamide employs cyanuric chloride in the presence of a catalytic amount of N,N-dimethylformamide and in a polar solvent that is removed by vacuum distillation at a temperature below 100° C. The N,N-dimethylformamide is added in a molar ratio of 0.16 moles for each mole of cyanoacetamide present in the starting solution.
摘要翻译： 通过氰基乙酰胺脱水生产丙二腈的改进方法是在催化量的N，N-二甲基甲酰胺存在下，并在极性溶剂中使用氰尿酰氯，该极性溶剂在低于100℃的温度下通过真空蒸馏除去。 以每摩尔存在于起始溶液中的氰基乙酰胺的摩尔比为0.16摩尔加入N，N-二甲基甲酰胺。
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