CAS: 110-41-8; 2-Methylundecanal

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3-甲基-3-壬基环氧乙烷-2-羧酸乙酯 反应生成2-甲基十一醛
参考文献:Process Of Manufacturing Aldehydes And The Products
标题:Process Of Manufacturing Aldehydes And The Products
摘要:替代甘油酸酯,化学式为 <;Form:0372013/iv/1>; 其中 R1 为氢或烷基,R2置于r1 为氢时为环残基,在 R1 为烷基时为任何有机残基,X 代表饱和链,通过将卤代乙酸酯与环状醛或酮(其中羟基团的碳原子与烷基和任何有机残基结合,或者是饱和环的成员)与碱金属,碱金属酰胺或碱金属醇酸盐在不分离碱金属卤化物的介质中缩合而制造,该介质在缩合过程中不会使碱金属卤化物分离于缩合剂,即液态烃或液态卤代烃. 通过与碱水解,酸化溶液并蒸馏,将产品转化为替代乙醛. 例如:(1)苯甲醛与氯乙酸乙酯在二甲苯存在下通过钠缩合,生成苯基甘油酸乙酯,进而转化为苯乙醛;(2)4-甲氧基苯甲醛类似处理;(3)4-氯苯甲醛类似转化为4-氯苯基甘油酸乙酯和4-氯苯乙醛;(4)苯乙酮与氯乙酸乙酯在苯或二甲苯存在下通过钠酰胺缩合,产生 B-苯基-B-甲基甘油酸乙酯,进而转化为1-氧代-2-苯基-2-甲基乙烷(水合戊醛);(5)2-氧代-6 : 10-二甲基十一烷(六氢伪离子酮)与氯乙酸乙酯在二甲苯中通过钠缩合,生成相应的甘油酸酯,转化为1-氧代-2 : 6 : 10-三甲基十一烷;(6)去氢-2-氧代萘烷(b-去氢基酮)类似产生相应的甘油酸酯,转化为去氢-2-萘甲醛;(7)1 : 1 : 3-三甲基-2-(23-氧代丁基)-环己烷(四氢伊酮)类似缩合以产生相应的甘油酸酯,转化为1 : 1 : 3-三甲基-2-(2<;4>;-氧代-2<;3>;-甲基丁基)-环己烷. 还给出了从以下物质获得的替代甘油酸酯和替代乙醛的性质:4-甲基和4-乙基苯甲醛,2 : 4-二甲基苯甲醛,4-异丙基苯甲醛,4-(1<;1>;-甲基丙基)-苯甲醛(通过一氧化碳在氯化铝存在下作用于2-苯基丁烷获得),2 : 4-二异丙基苯甲醛,5 : 6 : 7 : 8-四氢-1-萘甲醛(通过一氧化碳在氯化铝存在下作用于四氢萘烷获得);2-氧代癸烷(甲基辛酮),2-氧代十一烷(甲基壬酮),2-氧代-2-(对异丙基苯基)-乙烷(对异丙基苯乙酮),2-氧代-2-(对甲氧基苯基)-乙烷(甲基-对-甲氧基苯基酮),2-氧代-4-苯基丁烷,2-氧代-4-(对异丙基苯基)-丁烷,和1 : 1 : 3-三甲基-2-(2<;3>;-氧代戊基)-环己烷(通过氢化相应的 A-甲基伊酮获得). 另一方面指定的起始材料是萘甲醛和糠醛,另一方面是溴乙酸酯. 参考规范 21047/04,[2类,酸和盐,有机等],和 293,703,[2类(III),染料等].

专利信息

专利号:US-5175302-A
优先权日:1987-07-13
标 题 :Nucleophilic fluoroalkylation of aldehydes
发明人：STAHLY G PATRICK
权利人:ETHYL CORP
摘要:Aryl difluoromethyl sulfone adds to aldehydes under phase transfer conditions to give novel substituted alcohols of the general formula n n RCH(OH)CF.sub.2 SO.sub.2 Ar (I) n n wherein R is an aryl, cycloaliphatic, sec- or tert-aliphatic, or heterocyclic group and Ar is an aryl group. The substituted alcohols of formula I are of particular utility as intermediates in the synthesis of a variety of useful end products. For example, the products of formula I may be utilized in desulfonylation reactions, oxidation reactions and fluorination reactions.

专利号:US-4837327-A
优先权日:1987-07-13
标 题 :Process for nucleophilic fluoroalkylation of aldehydes
发明人：STAHLY G PATRICK
权利人:ETHYL CORP
摘要:Aryl difluoromethyl sulfone adds to alkehydes under phase transfer conditions to give novel substituted alcohols of the general formula n n RCH(OH)CF.sub.2 SO.sub.2 Ar (I) n n wherein R is an aryl, cycloaliphatic, sec- or tert-aliphatic, or heterocyclic group and Ar is an aryl group. The substituted alcohols of formula I are of particular utility as intermediates in the synthesis of a variety of useful end products. For example, the products of formula I may be utilized in desulfonylation reactions, oxidation reactions and fluorination reactions.

专利号:US-4999429-A
优先权日:1989-01-09
标 题 :Process for the preparation of α,α,β-1-trifluoro-1-olefinic derivatives
发明人：STAHLY G PATRICK
权利人:ETHYL CORP
摘要:Aryl difluoromethyl sulfone adds to aldehydes under phase transfer conditions to give novel substituted alcohols of the general formula n n RCH(OH)CF.sub.2 SO.sub.2 Ar (I) n n wherein R is an aryl, cycloaliphatic, sec- or tert-aliphatic, or heterocyclic group and Ar is an aryl group. The substituted alcohols of formula I are of particular utility as intermediates in the synthesis of a variety of useful end products. For example, the products of formula I may be utilized in desulfonylation reactions, oxidation reactions and fluorination reactions.

专利号:WO-2015051525-A1
优先权日:2013-10-11
标 题 :Synthesis of acetal/ketal
发明人：ZHOU WENJUAN; FANG LIN; CLACENS JEAN-MARC; BONNEVIOT LAURENT; DECAMPO FLORYAN
权利人:RHODIA OPERATIONS; CENTRE NAT RECH SCIENT; ECOLE NORMALE SUPERIEUR DE LYON ENSL
摘要:The present invention concerns a process for preparing cyclic acetal or ketal by reacting a carbonyl compound (a) with a polyol (b), wherein said carbonyl compound (a) and polyol (b) are forming a biphasic liquid system when mixed together, comprising at least the following steps: a) Producing a carbonyl compound (a) / polyol (b) emulsion by using as stabilizing species amphiphilic solid particles of nanometric dimension and optionally a catalyst X; b) Proceeding to the reaction to produce cyclic acetal or ketal, notably by setting temperature, and c) Isolating the resulting compounds.

专利号:RU-2035448-C1
优先权日:1992-04-20
标题:2-acetonyl-5,5-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene as a component of perfumery composition, method of its synthesis, 2,6-dimethyl-2,6,10-tridecatriene-12-one as an intermediate product in synthesis of 2-acetonyl-5,5-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene

专利号:WO-2018192923-A1
优先权日:2017-04-18
标题 :Alpha alkylation of aldehyde with a polycyclic olefin
发明人：QUINTAINE JULIE; MACMILLAN DAVID W C
权利人:FIRMENICH & CIE
摘要:The present invention relates to the field of organic synthesis and more specifically to the alpha alkylation of an aldehyde with a polycyclic olefin followed by a ring opening step in order to provide compound of formula (I) in the form of any one of its stereoisomers or a mixture thereof and wherein R represents a hydrogen atom or C 1-8 linear alkyl group; R 1 , R 2 , R 3 and R 4 represent, when taken separately, independently of each other, a hydrogen atom or a C 1-2 linear alkyl group or a C 3-4 linear or branched alkyl group; or R 2 and R 3 , when taken together, represent a C 4-10 linear, branched or cyclic alkanediyl group and n is 1 or 2.