公开(公告)号：US3819713A

公开(公告)日：1974-06-25

申请号：US2808070

申请日：1970-04-13

Applicant: BASF AG

Inventor： POMMER H ,  MUELLER H ,  OVERWIEN H

IPC: C07C45/71 ,  C07C45/75 ,  C07C49/20

CPC classification number: C07C45/75 ,  C07C45/71 ,  C07C49/203

Abstract: ALKENONES WHOSE OLEFINIC DOUBLE BOND IS IN THE $,E-POSITION OR Y,&-POSITION TO THE KETO GROUP, ARE PREPARED BY REACTION OF AN OLEFIN WITH A B-HYDROXYKETONE IN THE LIQUID PHASE OR IN A SINGLE REACTION STAGE BY REACTION OF AN OLEFIN WITH FORMALDEHYDE OR A COMPOUND YIELDING FORMALDEHYDE AND AN ALIPHAIC KETONE IN THE LIQUID PHASE. ALKENONES ARE INTERMEDIATES FOR THE PRODUCTION OF PERFUMES AND VITAMINS.

公开(公告)号：CA937588A

公开(公告)日：1973-11-27

申请号：CA84725

申请日：1970-06-04

Applicant: BASF AG

Inventor： OVERWIEN H ,  STUEBINGER A ,  MUELLER H

IPC: B01J27/00 ,  C07C1/00 ,  C07C1/24 ,  C07C11/18 ,  C07C67/00

Abstract: 1301037 Isoprene BADISCHE ANILIN- & SODA-FABRIK AG 5 June 1970 [6 June 1969] 27190/70 Heading C5E Isoprene is made by dehydrating 3-methyl-3- buten 1-ol at 200-300‹ C. in the presence of a calcium phosphate catalyst, the 3-methyl-3- buten-1-ol having a purity of at least 85% by wt. of the total oxygen containing starting material. The reaction is preferably carried out in the presence of steam and/or an inert gas.

公开(公告)号：CA922737A

公开(公告)日：1973-03-13

申请号：CA102888

申请日：1971-01-15

Applicant: BASF AG

Inventor： MUELLER H ,  OVERWIEN H

IPC: C07C45/60

公开(公告)号：DK122222B

公开(公告)日：1972-02-07

申请号：DK72068

申请日：1968-02-23

Applicant: BASF AG

Inventor： POMMER H ,  MUELLER H ,  OVERWIEN H

IPC: C07C29/38 ,  C07C33/02 ,  C07C33/025 ,  C07C29/00

Abstract: 1,208,835. Production of alk-3-en-1-ols. BADISOHE ANILIN- & SODA-FABRIK A.G. 23 Feb., 1968 [25 Feb., 1967 (3); 30 Dec., 1967], No. 8881/68. Heading C2C. Alk-3-en-1-ols are prepared by reacting an olefinically unsaturated hydrocarbon bearing at least one hydrogen atom on at least one carbon atom adjacent to the carbon atoms of the double bond at from 235‹ to 400‹ C. with an aldehyde in the absence of an acid catalyst. By the term "alk-3-en-1-ols" is meant an acyclic or cyclic compound which is an olefinically unsaturated primary or secondary alcohol in which the carbon atom bearing the hydroxy group is separated from the nearest carbon atom bearing a double bond by a single carbon atom. The reaction is preferably carried out in the presence of a base comprising from 0À001 to 10% by weight of the total weight of the reaction mixture. It is not necessary to start from the free aldehyde, and hydrates, acetals, oligomers or polymers of aldehydes may be used. Alcohols which dehydrate under the reaction conditions to olefins may be used in the process as olefin precursors. The reaction may be carried out in the presence of a substance having a large surface area.

公开(公告)号：DK119655B

公开(公告)日：1971-02-08

申请号：DK458067

申请日：1967-09-13

Applicant: BASF AG

Inventor： POMMER H ,  MUELLER H ,  OVERWIEN H

IPC: C07C49/20

公开(公告)号：SE325021B

公开(公告)日：1970-06-22

申请号：SE1269867

申请日：1967-09-14

Applicant: BASF AG

Inventor： POMMER H ,  MEULLER H ,  OVERWIEN H

IPC: C07C49/20