ES2059954T3 - Procedimiento para la preparacion de esteres acidos alquilisotiocianicos. - Google Patents

Procedimiento para la preparacion de esteres acidos alquilisotiocianicos.

Info

Publication number
ES2059954T3
ES2059954T3 ES90120855T ES90120855T ES2059954T3 ES 2059954 T3 ES2059954 T3 ES 2059954T3 ES 90120855 T ES90120855 T ES 90120855T ES 90120855 T ES90120855 T ES 90120855T ES 2059954 T3 ES2059954 T3 ES 2059954T3
Authority
ES
Spain
Prior art keywords
reactor
alkylisotiocianic
procedure
preparation
acid esters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES90120855T
Other languages
English (en)
Inventor
Gunther Dr Giesselmann
Kurt Dr Gunther
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Degussa GmbH filed Critical Degussa GmbH
Application granted granted Critical
Publication of ES2059954T3 publication Critical patent/ES2059954T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C331/00—Derivatives of thiocyanic acid or of isothiocyanic acid
    • C07C331/16—Isothiocyanates
    • C07C331/18—Isothiocyanates having isothiocyanate groups bound to acyclic carbon atoms
    • C07C331/20—Isothiocyanates having isothiocyanate groups bound to acyclic carbon atoms of a saturated carbon skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

ESTER DE ACIDO TIOCIANICO DE ALQUILESO DE LA FORMULA R-N=C=S SE ELABORAN MEDIANTE LA TRANSFORMACION DE N-ALKYLDITHIOCARBAMINATEN CON PEROXIDO DE HIDROGENO EN UNA FASE ACUOSA DE 95 HASTA 130 C. SEGUN LA INVENCION SE PONE A REACCION LA SOLUCION ACUOSA DE N-ALKYLDITHIOCARBAMINAT CON UNA SOLUCION ACUOSA DE PEROXIDO DE HIDROGENO CON UN PORCENTAJE DEL PESO DE 20 A 40 EN COMBINACION CON EL VOLUMEN DE 1 A 0,8 HASTA 1, MANTENIENDO UN VALOR PH DE 1,5 A 4,5. PREFERIBLEMENTE SE PULVERIZAN LAS SOLUCIONES EN UN REACTOR, PARA LO CUAL SE DESTILA EL TIOCIANATO DE ALQUILOSO FORMADO DE VAPOR Y SE JUNTAN EN UN REACTOR LA FASE ACUOSA QUE CONTIENE LOS PRODUCTOS DERIVADOS. SEGUN ESTA INVENCION SE PUEDE AUMENTAR LA EXPLOTACION-TIEMPO -ESPACIO, YA QUE FRENTE AL METODO CONOCIDO, QUE SE REALIZA CON UN PH DE 5 A 9, SE FORMA MUCHO MENOS AZUFRE Y, POR LO TANTO, SE PUEDE MINIMIZAR EL TIEMPO DE PARADA AL LIMPIAR EL REACTOR.
ES90120855T 1990-01-16 1990-10-31 Procedimiento para la preparacion de esteres acidos alquilisotiocianicos. Expired - Lifetime ES2059954T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4001020A DE4001020A1 (de) 1990-01-16 1990-01-16 Verfahren zur herstellung von alkylisothiocyansaeureestern

Publications (1)

Publication Number Publication Date
ES2059954T3 true ES2059954T3 (es) 1994-11-16

Family

ID=6398130

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90120855T Expired - Lifetime ES2059954T3 (es) 1990-01-16 1990-10-31 Procedimiento para la preparacion de esteres acidos alquilisotiocianicos.

Country Status (6)

Country Link
US (1) US5208361A (es)
EP (1) EP0446420B1 (es)
JP (1) JP2854147B2 (es)
CA (1) CA2034210C (es)
DE (2) DE4001020A1 (es)
ES (1) ES2059954T3 (es)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637788A (en) * 1968-07-19 1972-01-25 Upjohn Co Process for producing isothiocyanates
DE2105473C3 (es) * 1971-02-05 1974-07-18 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt

Also Published As

Publication number Publication date
CA2034210C (en) 1996-04-23
JPH06184092A (ja) 1994-07-05
DE4001020A1 (de) 1991-07-18
JP2854147B2 (ja) 1999-02-03
EP0446420A1 (de) 1991-09-18
DE59003627D1 (de) 1994-01-05
US5208361A (en) 1993-05-04
EP0446420B1 (de) 1993-11-24
CA2034210A1 (en) 1991-07-17

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