公开(公告)号：DE1620263A1

公开(公告)日：1970-03-19

申请号：DE1620263

申请日：1965-04-15

Applicant: SNIA VISCOSA

Inventor： MUENCH WERNER ,  SILVESTRI GIULIANA ,  PAOLO ROSSI PIETRO

IPC: B01J19/18 ,  B01J19/24 ,  C07D201/10

Abstract: Forming caprolactam from a nitrosating agent and at least 1 cyclohexanoyl cpd., selected from hexahydrobenzoic acid, derivs. which hydrolyse to the acid or ketones in which a cyclohexane ring is attached to the ketone carbonyl group, in the presence of SO3 or H2SO4, consists of feeding the cyclohexanoyl cpd. into the first of many reaction zones into which is also fed the nitrosating agent in an amt. not exceeding 65% by wt. of the overall wt. fed into all the reaction zonex, allowing reaction to proceed and then passing the mixture of reacted cyclohexanoyl cpd. and unreacted cyclohexanoyl cpd. into at least 1 other reaction zone into which is passed nitrosating agent in an amount not exceeding 65% by wt. of the overall amt. fed into all the reaction zones and here allowing the reaction to proceed.

公开(公告)号：AT277193B

公开(公告)日：1969-12-10

申请号：AT1139067

申请日：1967-12-18

Applicant: STAMICARBON

IPC: C07D201/10 ,  C07D41/06

公开(公告)号：CH481917A

公开(公告)日：1969-11-30

申请号：CH1344667

申请日：1967-09-26

Applicant: INVENTA AG

Inventor： HANS WERNER DIPL-ING PHILLIP ,  SCHULTZE HANS-JOACHIM DR RER N ,  DIPL MASCH-ING GEHRING ALBERT

IPC: B01J19/18 ,  C07D201/10 ,  C07D41/00

公开(公告)号：ES348304A1

公开(公告)日：1969-06-16

申请号：ES348304

申请日：1967-12-15

Applicant: STAMICARBON

IPC: C07D201/10 ,  C07D

公开(公告)号：GB1148424A

公开(公告)日：1969-04-10

申请号：GB1828267

申请日：1967-04-20

Applicant: ICI LTD

Inventor： CORNFORTH DAVID ARTHUR ,  DUXBURY FREDERICK KEITH ,  JOHNSON DAVID HAROLD ,  WILLIAMS DEREK

IPC: C07D201/10

Abstract: 1,148,424. Dodecanolactam. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 March, 1968 [20 April, 1967], No. 18282/67. Heading C2C. Dodecanolactam is produced by reacting a monosubstituted cyclododecane with a nitrosating agent in the presence of chlorosulphonic acid. The substituent in the monosubstituted cyclododecane is preferably an electron withdrawing group, for example an hydroxyalkyl, ketone, sulphone, carboxylic acid or carboxylic ester group. The nitrosating agent may be nitrous acid or any derivative of nitrous acid such as sodium nitrite, an alkyl nitrite, nitrous anhydride, nitrosyl chloride or bromide, nitrosyl sulphuric acid anhydride or nitrosyl sulphuric acid. The chlorosulphonic acid may be the sole reaction medium or may be mixed with sulphuric acid or oleum or with an inert organic solvent. The reaction is usually carried out at temperatures within the range 25‹ to 150‹ C.

公开(公告)号：NL6813703A

公开(公告)日：1969-03-28

申请号：NL6813703

申请日：1968-09-25

IPC: B01J19/18 ,  C07D201/10 ,  C07D ,  B01J1/00

公开(公告)号：ES348305A1

公开(公告)日：1969-03-01

申请号：ES348305

申请日：1967-12-15

Applicant: STAMICARBON

IPC: C07D201/10 ,  C07D

公开(公告)号：DE1468737A1

公开(公告)日：1969-01-02

申请号：DE1468737

申请日：1963-07-27

Applicant: TOYO RAYON KABUSHI KAISHA

Inventor： ITO YOSHIZU ,  HARA YOICHIRO

IPC: B01J19/12 ,  C07D201/10

公开(公告)号：NL6617753A

公开(公告)日：1968-06-17

申请号：NL6617753

申请日：1966-12-16

IPC: C07D201/10

公开(公告)号：BE708022A

公开(公告)日：1968-06-17

申请号：BE708022D

申请日：1967-12-15

IPC: C07D201/10