公开(公告)号：US3579291A

公开(公告)日：1971-05-18

申请号：US3579291D

申请日：1969-12-03

Applicant: BASF AG

Inventor： LUDWIG WINFRIED ,  OSTER RUDOLF ,  URBACH HANS

IPC: B01D47/00 ,  B01D53/54 ,  B01D47/02

CPC classification number: B01D47/00 ,  B01D53/54

Abstract: A PROCESS FOR REMOVING PHENYL AZIDE FROM GAS BY PASSING THE GAS CONTAINING PHENYL AZIDE THROUGH 50 TO 100WT. PERCENT SULFURIC ACID.

公开(公告)号：GB895927A

公开(公告)日：1962-05-09

申请号：GB3593760

申请日：1960-10-20

Applicant: BASF AG

Inventor： DIMROTH PETER ,  DUFFNER PAUL ,  OSTER RUDOLF ,  PASEDACH HEINRICH

Abstract: 1 - Dialkylamino - 4 - hydroxy - acetylenes - (2) of the formula where R1 is hydrogen, methyl, ethyl, propyl or phenyl, R2 is hydrogen, methyl, ethyl or propyl, or R1 and R2 together form part of a cyclohexyl or cyclooctyl radical, R3 is methyl or ethyl, R4 is methyl or ethyl, or R3 and R4 together with the nitrogen atom represent a hydrogenated heterocyclic nitrogen- or nitrogen- and oxygen-containing radical, are prepared by reacting an aqueous solution or suspension of pH 3-6.8 of a salt of an amine R3R4NH in the presence of copper ions and at 40 DEG C.-100 DEG C. with formaldehyde and an a -hydroxyacetylenic compound

公开(公告)号：CA880364A

公开(公告)日：1971-09-07

申请号：CA880364D

Applicant: BASF AG

Inventor： OSTER RUDOLF ,  SCHUSTER LUDWIG

公开(公告)号：FR1273091A

公开(公告)日：1961-10-06

申请号：FR842060

申请日：1960-10-22

Applicant: BASF AG

Inventor： DIMROTH PETER ,  DUFFNER PAUL ,  OSTER RUDOLF ,  PASEDACH HEINRICH

公开(公告)号：BE596225A

公开(公告)日：1961-04-20

申请号：BE596225

申请日：1960-10-20

Applicant: BASF AG

Inventor： DIMROTH PETER ,  DUFFNER PAUL ,  OSTER RUDOLF ,  PASEDACH HEINRICH

IPC: C07D295/08 ,  C07A