公开(公告)号：HU209289B

公开(公告)日：1994-04-28

申请号：HU9200599

申请日：1992-02-24

Applicant: HOECHST AG

Inventor： SCHLEGEL GUENTER ,  LACHHEIN STEPHEN ,  BERGER HARALD

IPC: C07C303/40 ,  C07C311/65

公开(公告)号：HU9200599D0

公开(公告)日：1992-05-28

申请号：HU9200599

申请日：1992-02-24

Applicant: HOECHST AG

Inventor： SCHLEGEL GUENTER ,  LACHHEIN STEPHEN ,  BERGER HARALD

IPC: C07C303/40 ,  C07C311/65

公开(公告)号：CA2075558A1

公开(公告)日：1993-02-09

申请号：CA2075558

申请日：1992-08-07

Applicant: HOECHST AG

Inventor： ROSCHER GUENTER ,  KLEINER HANS-JERG ,  BERGER HARALD ,  SCHMIDT MANFRED ,  UHMANN RAINER ,  BOETTGER DIRK

IPC: C07F9/48 ,  C07F9/38 ,  C08G79/02 ,  C08G79/04

Abstract: Process for the preparation of pure propanephosphonic anhydride, which comprises distilling crude, impure propanephosphonic anhydride having an average degree of polymerization of 20 to 200 and containing less than 0.5% by weight of water by heating to 230 to 300.degree.C under a pressure of 0.1 to 100 mbar, pure propanephosphonic anhydride having an average decree of polymerization of 20 to 60 being obtained.

公开(公告)号：HUT60468A

公开(公告)日：1992-09-28

申请号：HU9200599

申请日：1992-02-24

Applicant: HOECHST AG

Inventor： SCHLEGEL GUENTER ,  LACHHEIN STEPHEN ,  BERGER HARALD

IPC: C07C303/40 ,  C07C311/65

公开(公告)号：CA2061733A1

公开(公告)日：1992-08-26

申请号：CA2061733

申请日：1992-02-24

Applicant: HOECHST AG

Inventor： SCHLEGEL GUENTER ,  LACHHEIN STEPHEN ,  BERGER HARALD

IPC: C07C303/40 ,  C07C311/65

Abstract: HOE 91/F 058 Process for the preparation of sulfonyl isocyanates The invention relates to an improved process for the preparation of a compound of the formula R1-X-SO2-NCO in which X is O or NR2, R1 is alkylsulfonyl or phenyl which is optionally substituted by Hal, alkyl and/or alkoxy, and R2 is alkyl, by reacting R2XH with ClSO2NCO to give the compound R1XCONHSO2Cl followed by a rearrangment reaction, which comprises carrying out the process continuously in the presence or absence of an inert solvent.

公开(公告)号：ZA8104482B

公开(公告)日：1982-08-25

申请号：ZA8104482

申请日：1981-07-02

Applicant: HOECHST AG

Inventor： RYMON LIPINSKI GERT WOLFHARD V ,  BERGER HARALD ,  BECKER THEO

IPC: C12H1/056 ,  C12H

CPC classification number: C12H1/0424

公开(公告)号：CA887141A

公开(公告)日：1971-11-30

申请号：CA887141D

Applicant: HOECHST AG

Inventor： BERGER HARALD ,  BESTIAN HERBERT ,  KORBANKA HELMUT