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    • 1. 发明授权
    • Process for the preparation of substituted difluorobenzo-1,3-dioxoles
    • 制备取代的二氟苯-1,3-二氧杂环戊烯的方法
    • US5194628A
    • 1993-03-16
    • US583787
    • 1990-09-14
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • C07D317/46C07D405/04C07F1/00C07F1/02C07F3/00C07F5/02C07F7/08C07F7/10C07F19/00
    • C07D405/04C07D317/46C07F1/00C07F1/02C07F19/00C07F3/00C07F5/025C07F7/0814C07F7/10Y02P20/55
    • The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 l in which Z.sup.1 is a leaving group, or with an aldehyde produces compounds of formula I ##STR1## wherein R.sup.1 l is --OH, --SH, --CHO, --CN, --COOH, --B(OH).sub.2, --COX, with X being Cl or Br, or is --COOR.sup.2, --SiR.sub.3.sup.2 or --B(OR.sup.2).sub.2, with R.sup.2 being a C.sub.1 -C.sub.12 alcohol moiety without the hydroxy group, wherein R.sup.1 is further --C.sub.n H.sub.2n COOR.sup.2, with n being an integer from 1 to 4, or linear or branched C.sub.1 -C.sub.12 hydroxyalkyl which is unsubstituted or is substituted by --F, --CN, C.sub.1 -C.sub.6 alkoxy, phenyl, fluorophenyl, C.sub.1 -C.sub.4 alkoxy-phenyl, C.sub.1 -C.sub.4 alkylthio-phenyl, C.sub.1 -C.sub.4 alkyl-phenyl, C.sub.1 -C.sub.4 fluoroalkyl-phenyl, nitrophenyl or by cyanophenyl, or wherein R.sup.1 is a benzyl alcohol which is unsubstituted or is substituted by F, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 fluoroalkyl, nitro or by cyano, or is C.sub.1 -C.sub.12 acyl, or wherein R.sup. 1 is a radical of formula II ##STR2## wherein R.sup.5 is --CN, --CF.sub.3, --COOR.sup.2, --CO--NHR.sup.2 or --CONR.sub.2.sup.2, R.sup.3 and R.sup.4 are a direct bond or each is H, or R.sup.3 is H and R.sup.4 independently has the meanings of R.sup.5, or R.sup.3 and R.sup.4 together are --CH.sub.2 --NR.sup.6 --CH.sub.2 --, --CH.sub.2 --NR.sup.6 --CO-- or --CO--NR.sup.6 --CO-- wherein R.sup.6 is the radical of a removable protecting group, or wherein further R.sup.1 is a radical of formula III ##STR3## Insecticides or fungicides can be prepared from the compounds of formula I. 3-(2,2-difluorobenzodioxol-4-yl)-4-cyanopyrrole can be prepared by reacting 4-metallo-2,2-difluorobenzodioxole (III) with an unsaturated nitrile and then with a sulfonylmethyl isocyanide in a one-pot process. The compounds III are novel intermediates.
    • 2,2-二氟苯-1,3-二氧杂环戊烯与(a)碱金属或碱金属化合物反应,然后(b)其中Z1是离去基团或与醛产生的化合物R1-Z1 式I的化合物其中R 1是-OH,-SH,-CHO,-CN,-COOH,-B(OH)2,-COX,X是Cl或Br,或是-COOR 2 ,-SiR 32或-B(OR 2)2,其中R 2是没有羟基的C 1 -C 12醇部分,其中R 1还是-C n H 2n NOR 2,n是1至4的整数,或直链或支链C 1 -C 12羟烷基,其是 或者被-F,-CN,C 1 -C 6烷氧基,苯基,氟苯基,C 1 -C 4烷氧基 - 苯基,C 1 -C 4烷硫基 - 苯基,C 1 -C 4烷基 - 苯基,C 1 -C 4氟烷基 - 苯基,硝基苯基或氰基苯基取代,或其中 R1是未被取代或被F,C 1 -C 4烷氧基,C 1 -C 4烷硫基,C 1 -C 4烷基,C 1 -C 4氟烷基,硝基或氰基取代的苯甲醇,或者是C 1 -C 12酰基,或其中R 1是式 II(II)其中R5是-CN,-CF3,-COOR2,-CO-NHR2 或-CONR 22,R 3和R 4是直接键或各自为H或R 3为H且R 4独立地具有R 5的含义,或者R 3和R 4一起为-CH 2 -NR 6 -CH 2 - , - CH 2 -NR 6 -CO- 或-CO-NR6-CO-,其中R6是可除去的保护基团的基团,或其中R1是式III的基团。(III)杀虫剂或杀真菌剂可以由式I化合物制备。 (2,2-二氟苯并二氧杂环戊烯-4-基)-4-氰基吡咯可以通过4-金属-2,2-二氟苯并间二氧杂环戊烯(III)与不饱和腈然后与磺酰基甲基异氰化物在一锅法中反应来制备。 化合物III是新的中间体。
    • 2. 发明授权
    • Process for the preparation of substituted difluorobenzo-1,3-dioxoles
    • 制备取代的二氟苯-1,3-二氧杂环戊烯的方法
    • US5420301A
    • 1995-05-30
    • US147617
    • 1993-11-05
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • A61K31/33C07D317/06C07D317/46C07D405/04C07F1/00C07F1/02C07F3/00C07F5/02C07F7/08C07F7/10C07F19/00C07D317/50C07D317/52C07D317/54
    • C07D405/04C07D317/46C07F1/00C07F1/02C07F19/00C07F3/00C07F5/025C07F7/0814C07F7/10Y02P20/55
    • The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 in which Z.sup.1 is a leaving group, or with an aldehyde produces compounds of formula I ##STR1## wherein R.sup.1 is --OH, --SH, --CHO, --CN, --COOH, --B(OH).sub.2, --COX, with X being Cl or Br, or is --COOR.sup.2, --SiR.sub.3.sup.2 or --B(OR.sup.2).sub.2, with R.sup.2 being a C.sub.1 -C.sub.12 alcohol moiety without the hydroxy group, wherein R.sup.1 is further --C.sub.n H.sub.2n COOR.sup.2, with n being an integer from 1 to 4, or linear or branched C.sub.1 -C.sub.12 hydroxyalkyl which is unsubstituted or is substituted by --F, --CN, C.sub.1 -C.sub.6 alkoxy, phenyl, fluorophenyl, C.sub.1 -C.sub.4 alkoxy-phenyl, C.sub.1 -C.sub.4 alkylthio-phenyl, C.sub.1 -C.sub.4 alkyl-phenyl, C.sub.1 -C.sub.4 fluoroalkyl-phenyl, nitrophenyl or by cyanophenyl, or wherein R.sup.1 is a benzyl alcohol which is unsubstituted or is substituted by F, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 fluoroalkyl, nitro or by cyano, or is C.sub.1 -C.sub.12 acyl, or wherein R.sup.1 is a radical of formula II ##STR2## wherein R.sup.5 is --CN, --CF.sub.3, --COOR.sup.2, --CONH.sup.2, --CO--NHR.sup.2 or --CONR.sub.2.sup.2, R.sup.3 and R.sup.4 are a direct bond or each is H, or R.sup.3 is H and R.sup.4 independently has the meanings of R.sup.5, or R.sup.3 and R.sup.4 together are --CH.sub.2 --NR.sup.6 --CH.sub.2 --, --CH.sub.2 --NR.sup.6 --CO-- or --CO--NR.sup.6 --CO-- wherein R.sup.6 is the radical of a removable protecting group, or wherein further R.sup.1 is a radical of formula III ##STR3## Insecticides or fungicides can be prepared from the compounds of formula I.3-(2,2-difluorobenzodioxol-4-yl)-4-cyanopyrrole can be prepared by reacting 4-metallo-2,2-difluorobenzodioxole (III) with an unsaturated nitrile and then with a sulfonylmethyl isocyanide in a one-pot process. The compounds III are novel intermediates.
    • 2,2-二氟苯-1,3-二氧杂环戊烯与(a)碱金属或碱金属化合物反应,然后(b)其中Z 1为离去基团的化合物R1-Z1或与醛反应生成化合物 其中R 1是-OH,-SH,-CHO,-CN,-COOH,-B(OH)2,-COX,X是Cl或Br,或者是-COOR 2, - SiR 32或-B(OR 2)2,其中R 2是没有羟基的C 1 -C 12醇部分,其中R 1还是-C n H 2n NOR 2,n是1至4的整数,或未被取代的直链或支链C 1 -C 12羟基烷基 被-F,-CN,C 1 -C 6烷氧基,苯基,氟苯基,C 1 -C 4烷氧基 - 苯基,C 1 -C 4烷硫基 - 苯基,C 1 -C 4烷基 - 苯基,C 1 -C 4氟烷基 - 苯基,硝基苯基或氰基苯基取代,或其中R 1为 苄基醇,其未被取代或被F,C 1 -C 4烷氧基,C 1 -C 4烷硫基,C 1 -C 4烷基,C 1 -C 4氟烷基,硝基或氰基取代,或者是C 1 -C 12酰基,或其中R 1是式II基团。 (II)其中R5是-CN,-CF3,-COOR2,-CONH2,-CO-NHR 2或-CONR 22,R 3和R 4是直接键或各自为H或R 3为H且R 4独立地具有R 5的含义,或者R 3和R 4一起为-CH 2 -NR 6 -CH 2 - , - CH 2 -NR 6 -CO - 或-CO-NR 6 -CO-,其中R 6是可除去的保护基的基团,或其中R 1是式III的基团由式I化合物制备。3-(2,2-二氟苯并二氧杂环戊烯-4-基) 4-氰基吡咯可以通过4-金属-2,2-二氟苯并二氧杂环戊烯(III)与不饱和腈然后与一种磺酰基甲基异氰化物反应来制备。 化合物III是新的中间体。
    • 3. 发明授权
    • Process for the preparation of substituted difluorobenzo-1,3-dioxoles
    • 制备取代的二氟苯-1,3-二氧杂环戊烯的方法
    • US5514816A
    • 1996-05-07
    • US440172
    • 1995-05-12
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • A61K31/33C07D317/06C07D317/46C07D405/04C07F1/00C07F1/02C07F3/00C07F5/02C07F7/08C07F7/10C07F19/00
    • C07D405/04C07D317/46C07F1/00C07F1/02C07F19/00C07F3/00C07F5/025C07F7/0814C07F7/10Y02P20/55
    • The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 in which Z.sup.1 is a leaving group, or with an aldehyde produces compounds of formula I ##STR1## wherein R.sup.1 is --OH, --SH, --CHO, --CN, --COOH, --B(OH).sub.2, --COX, with X being C1 or Br, or is --COOR.sup.2, --SiR.sup.2.sub.3 or --B(OR.sup.2).sub.2, with R.sup.2 being a C.sub.1 -C.sub.12 alcohol moiety without the hydroxy group, wherein R.sup.1 is further --C.sub.n H.sub.2n COOR.sup.2, with n being an integer from 1 to 4, or linear or branched C.sub.1 -C.sub.12 hydroxyalkyl which is unsubstituted or is substituted by --F, --CN, C.sub.1 -C.sub.6 alkoxy, phenyl, fluorophenyl, C.sub.1 -C.sub.4 alkoxy-phenyl, C.sub.1 -C.sub.4 alkylthio-phenyl, C.sub.1 -C.sub.4 alkylphenyl, C.sub.1 -C.sub.4 fluoroalkyl-phenyl, nitrophenyl or by cyanophenyl, or wherein R.sup.1 is a benzyl alcohol which is unsubstituted or is substituted by F, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 fluoroalkyl, nitro or by cyano, or is C.sub.1 -C.sub.12 acyl, or wherein R.sup.1 is a radical of formula II ##STR2## wherein R.sup.5 is --CN, --CF.sub.3, --COOR.sup.2, --CONH.sup.2, --CO--NHR.sup.2 or --CONR.sup.2.sub.2, R.sup.3 and R.sup.4 are a direct bond or each is H, or R.sup.3 is H and R.sup.4 independently has the meanings of R.sup.5, or R.sup.3 and R.sup.4 together are --CH.sub.2 --NR.sup.6 --CH.sub.2 --, --CH.sub.2 --NR.sup.6 --CO-- or --CO--NR.sup.6 --CO-- wherein R.sup.6 is the radical of a removable protecting group, or wherein further R.sup.1 is a radical of formula III ##STR3## Insecticides or fungicides can be prepared from the compounds of formula I.
    • 2,2-二氟苯-1,3-二氧杂环戊烯与(a)碱金属或碱金属化合物反应,然后(b)其中Z 1为离去基团的化合物R1-Z1或与醛反应生成化合物 其中R 1是-OH,-SH,-CHO,-CN,-COOH,-B(OH)2,-COX,X是C1或Br,或是-COOR2, - SiR 23或-B(OR 2)2,其中R 2是没有羟基的C 1 -C 12醇部分,其中R 1还是-C n H 2n COOR 2,n是1至4的整数,或未被取代的直链或支链C 1 -C 12羟基烷基 或被-F,-CN,C 1 -C 6烷氧基,苯基,氟苯基,C 1 -C 4烷氧基 - 苯基,C 1 -C 4烷硫基 - 苯基,C 1 -C 4烷基苯基,C 1 -C 4氟烷基 - 苯基,硝基苯基或氰基苯基取代,或其中R 1是 未被取代或被F,C 1 -C 4烷氧基,C 1 -C 4烷硫基,C 1 -C 4烷基,C 1 -C 4氟烷基,硝基或氰基取代的苯甲醇,或者是C 1 -C 12酰基,或其中R 1是式II基团 -CONH 2,-CO-NHR 2或-CONR 22,R 3和R 4是直接键 或各自为H或R 3为H且R 4独立地具有R 5的含义,或者R 3和R 4一起为-CH 2 -NR 6 -CH 2 - , - CH 2 -NR 6 -CO-或-CO-NR 6 -CO-,其中R 6为 可除去的保护基团的基团,或其中R 1为式III的基团。(III)杀虫剂或杀真菌剂可由式I化合物制备。
    • 5. 发明授权
    • Process for the preparation of substituted difluorobenzo-1,3-dioxoles
    • 制备取代的二氟苯-1,3-二氧杂环戊烯的方法
    • US5281718A
    • 1994-01-25
    • US987902
    • 1992-12-04
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • Peter AckermannHans-Ruedi KanelBruno Schaub
    • C07D317/46C07D405/04C07F1/00C07F1/02C07F3/00C07F5/02C07F7/08C07F7/10C07F19/00C07D207/36
    • C07D405/04C07D317/46C07F1/00C07F1/02C07F19/00C07F3/00C07F5/025C07F7/0814C07F7/10Y02P20/55
    • The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 in which Z.sup.1 is a leaving group, or with an aldehyde produces compounds of formula I ##STR1## wherein R.sup.1 is --OH, --SH, --CHO, --CN, --COOH, --B(OH).sub.2, --COX, with X being Cl or Br, or is --COOR.sup.2, --SiR.sub.3.sup.2 or --B(OR.sup.2).sub.2, with R.sup.2 being a C.sub.1 -C.sub.12 alcohol moiety without the hydroxy group, wherein R.sup.1 is further --C.sub.n H.sub.2n COOR.sup.2, with n being an integer from 1 to 4, or linear or branched C.sub.1 -C.sub.12 hydroxyalkyl which is unsubstituted or is substituted by --F, --CN, C.sub.1 -C.sub.6 alkoxy, phenyl, fluorophenyl, C.sub.1 -C.sub.4 alkoxy-phenyl, C.sub.1 -C.sub.4 alkylthio-phenyl, C.sub.1 -C.sub.4 alkylphenyl, C.sub.1 -C.sub.4 fluoroalkyl-phenyl, nitrophenyl or by cyanophenyl, or wherein R.sup.1 is a benzyl alcohol which is unsubstituted or is substituted by F, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 fluoroalkyl, nitro or by cyano, or is C.sub.1 -C.sub.12 acyl, or wherein R.sup. 1 is a radical of formula II ##STR2## wherein R.sup.5 is --CN, --CF.sub.3, --COOR.sup.2, --CONH.sup.2, --CO--NHR.sup.2 or --CONR.sub.2.sup.2, R.sup.3 and R.sup.4 are a direct bond or each is H, or R.sup.3 is H and R.sup.4 independently has the meanings of R.sup.5, or R.sup.3 and R.sup.4 together are --CH.sub.2 --NR.sup.6 --CH.sub.2 --, --CH.sub.2 --NR.sup.6 --CO-- or --CO--NR.sup.6 --CO-- wherein R.sup.6 is the radical of a removable protecting group, or wherein further R.sup.1 is a radical of formula III ##STR3## Insecticides or fungicides can be prepared from the compounds of formula I. 3-(2,2-difluorobenzodioxol-4-yl)-4-cyanopyrrole can be prepared by reacting 4-metallo-2,2-difluorobenzodioxole (III) with an unsaturated nitrile and then with a sulfonylmethyl isocyanide in a one-pot process. The compounds III are novel intermediates.
    • 2,2-二氟苯-1,3-二氧杂环戊烯与(a)碱金属或碱金属化合物反应,然后(b)其中Z 1为离去基团的化合物R1-Z1或与醛反应生成化合物 其中R 1是-OH,-SH,-CHO,-CN,-COOH,-B(OH)2,-COX,X是Cl或Br,或者是 - COOR 2,-SiR 32或-B(OR 2)2,其中R 2为不含羟基的C 1 -C 12醇部分,其中R 1还为-C n H 2n NOR 2,n为1至4的整数,或直链或支链C 1 -C 12羟烷基, 被未取代或被-F,-CN,C 1 -C 6烷氧基,苯基,氟苯基,C 1 -C 4烷氧基 - 苯基,C 1 -C 4烷硫基 - 苯基,C 1 -C 4烷基苯基,C 1 -C 4氟烷基 - 苯基,硝基苯基或氰基苯基取代,或其中R 1 是未被取代或被F,C 1 -C 4烷氧基,C 1 -C 4烷硫基,C 1 -C 4烷基,C 1 -C 4氟烷基,硝基或氰基取代的苯甲醇,或是C 1 -C 12酰基,或其中R 1是式II的基团 (*化学结构*)(II)其中R5为 -CN,-CF 3,-COOR 2,-CONH 2,-CO-NHR 2或-CONR 22,R 3和R 4为直接键或各自为H或R 3为H,且R 4独立地具有R 5或R 3和R 4的含义 是-CH 2 -NR 6 -CH 2 - , - CH 2 -NR 6 -CO-或-CO-NR 6 -CO-,其中R 6是可除去保护基团的基团,或其中R 1是式III基团(*化学结构* )(III)杀虫剂或杀真菌剂可以由式I化合物制备。3-(2,2-二氟苯并二氧杂环戊烯-4-基)-4-氰基吡咯可以通过4-金属-2,2-二氟苯并二氧杂环戊烯(III) )与不饱和腈,然后在一锅法中与磺酰基甲基异氰化物反应。 化合物III是新的中间体。
    • 7. 发明授权
    • Bisulfite adducts of 2,4-dihalobutraldehyde
    • 2,4-二卤丁醛的亚硫酸氢盐加成物
    • US5256815A
    • 1993-10-26
    • US975035
    • 1992-11-12
    • Hans-Ruedi KanelJohn G. Dingwall
    • Hans-Ruedi KanelJohn G. Dingwall
    • C07C43/12C07C303/22C07C309/08C07D307/20C07C317/18
    • C07C43/12C07C303/22C07C309/08C07D307/20C07C2101/02
    • The invention relates to a process for the preparation of cyclopropanecarbaldehydes of formula ##STR1## in which R.sub.1 is C.sub.1 -C.sub.4 alkyl or benzyl, which comprises a) reacting a tetrahydrofuran of formula ##STR2## with a halogenating agent to form a 1,2,4-trihalobutyl ether of formula ##STR3## in which X is halogen and R.sub.2 is unsubstituted or halo-substituted C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.6 cycloalkyl that is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or by C.sub.1 -C.sub.4 alkoxy, or phenyl or benzyl each of which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro or cyano, andb) then reacting the compound of formula III with an aqueous bisulfite solution to form a bisulfite adduct of formula ##STR4## in which X is halogen and Y is a cation equivalent of an alkali metal or alkaline earth metal ion, andc) then cyclising the adduct, in the presence of a base, with a thiolate of formula ##STR5## in which R.sub.1 is C.sub.1 -C.sub.4 alkyl or benzyl and Z is a cation equivalent of an alkali metal or alkaline earth metal ion, to form a cyclopropanecarbaldehyde of formula I, and to the individual Process Steps a), b) and c) and the combinations thereof a)+b) and b)+c), and to the novel intermediates of formulae III and IV.
    • 本发明涉及一种制备式(I)的环丙烷甲醛的方法,其中R 1是C 1 -C 4烷基或苄基,其包括:a)使式Ⅺ(II)的四氢呋喃与卤化剂反应形成 式(III)的1,2,4-三卤丁基醚,其中X是卤素,R 2是未取代的或卤素取代的C 1 -C 10烷基,未被取代或被卤素,C 1 -C 4烷基或被C 1 -C 4烷基取代的C 3 -C 6环烷基 C 1 -C 4烷氧基或苯基或苄基,其各自是未被取代的或被卤素,C 1 -C 4烷基,C 1 -C 4烷氧基,硝基或氰基取代,和b)然后使式III化合物与亚硫酸氢盐水溶液反应,形成亚硫酸氢盐加合物 其中X是卤素并且Y是碱金属或碱土金属离子的阳离子当量的式(IV)化合物,和c)然后在碱的存在下将加合物与式R 1 S的硫醇盐环化 ( - )Z(+)(V)其中R1是C1-C4烷基或苄基,Z是一个阳离子当量 碱金属或碱土金属离子,以形成式I的环丙烷醛,以及单独的方法步骤a),b)和c)及其组合a)+ b)和b)+ c)的组合,以及该新颖的 式III和IV的中间体。
    • 8. 发明授权
    • Process for the preparation of substituted cyclopropanecarbaldehydes
    • 制备取代环丙烷甲醛的方法
    • US4968836A
    • 1990-11-06
    • US472677
    • 1990-01-30
    • Hans-Ruedi KanelJohn G. Dingwall
    • Hans-Ruedi KanelJohn G. Dingwall
    • C07C41/18C07C43/12C07C43/192C07C43/225C07C201/12C07C205/37C07C253/30C07C255/54C07C303/22C07C303/32C07C309/08C07C319/14C07C323/22C07D307/20
    • C07C43/12C07C303/22C07D307/20C07C2101/02
    • The invention relates to a process for the preparation of cyclopropanecarbaldehydes of formula ##STR1## in which R.sub.1 is C.sub.1 -C.sub.4 alkyl or benzyl, which comprises (a) reacting a tetrahydrofuran of formula ##STR2## in which X is halogen and R.sub.2 is unsubstituted or halo-substituted C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.6 -cycloalkyl that is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or by C.sub.1 -C.sub.4 alkoxy, or phenyl or benzyl each of which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro or cyano, with a halogenating agent to form a 1,2,4-trihalobutyl ether of formula ##STR3## in which X is halogen and R.sub.2 is unsubstituted or halo-substituted C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.6 cycloalkyl that is unsubstituted or substituted by halogen C.sub.1 -C.sub.4 alkyl or by C.sub.1 -C.sub.4 alkoxy, or phenyl or benzyl each of which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro or cyano, and(b) then reacting the compound of formula III with an aqueous bisulfite solution to form a bisulfite adduct of formula ##STR4## in which X is a halogen and Y is a cation equivalent of an alkali metal or alkaline earth metal ion, and(c) then cyclising the adduct, in the presence of a base, with a thiolate of formulaR.sub.1 --S.sup..crclbar. Z.sup..sym. (V) in which R.sub.1 is C.sub.1 -C.sub.4 alkyl or benzyl and Z is a cation equivalent of an alkali metal or alkaline earth metal ion, to form a cyclopropanecarbaldehyde of formula I, and to the individual Process Steps (a), (b) and (c) and the combinations thereof (a)+(b) and (b)+(c), and to the novel intermediates of formulae III and IV.
    • 本发明涉及一种制备式(I)的环丙烷甲醛的方法,其中R 1是C 1 -C 4烷基或苄基,其包括(a)使式Ⅺ(II)的四氢呋喃与其中X是卤素 未取代或被卤素,C 1 -C 4烷基或C 1 -C 4烷氧基取代的C 1 -C 10烷基,C 3 -C 6环烷基,或未被取代或被卤素取代的苯基或苄基, C 1-4烷基,C 1 -C 4烷氧基,硝基或氰基,与卤化剂反应形成式(Ⅺ)的1,2,4-三卤代丁基醚,其中X为卤素,R 2为未取代的或卤素取代的C 1 -C 10烷基, C 3 -C 6环烷基,其未被取代或被卤素C 1 -C 4烷基或C 1 -C 4烷氧基取代,或苯基或苄基,其各自未被取代或被卤素,C 1 -C 4烷基,C 1 -C 4烷氧基,硝基或氰基取代,和(b) 使式III化合物与亚硫酸氢钠水溶液反应,形成亚硫酸氢盐加合物o (IV)其中X是卤素,Y是碱金属或碱土金属离子的阳离子当量,和(c)然后在碱的存在下将加合物与硫醇的硫醇盐环化 式中R 1为C 1 -C 4烷基或苄基并且Z为碱金属或碱土金属离子的阳离子当量的式R1-S( - )Z(+)(V),形成式I的环丙烷甲醛, 单独的方法步骤(a),(b)和(c)及其组合(a)+(b)和(b)+(c)以及式III和IV的新型中间体。