公开(公告)号：US3689573A

公开(公告)日：1972-09-05

申请号：US3689573D

申请日：1969-07-11

Applicant: BAYER AG

Inventor： KLEIN ALFONS ,  WEDEMEYER KARL FRIEDRICH

IPC: C07C37/14

CPC classification number: C07C37/14 ,  C07C2601/10 ,  C07C39/17 ,  C07C39/373

Abstract: Reacting (optionally mono or di halo or alkyl -substituted) phenols, at least one ortho- or para- position to the hydroxy group of which is unsubstituted, with cyclopentadiene in the presence of an aluminum phenolate as catalyst, at a temperature of substantially between about 40*-120* C, to form in high yield and purity the corresponding known (optionally mono or di halo or alkyl -substituted)-ortho or para-cyclopent-2-enyl phenols, which are known intermediates usable for the synthesis of known insecticides.

Abstract translation: 反应（任选的单或二卤代或烷基取代的）酚，至少一个其羟基的未取代的邻位或对位与环戊二烯在酚铝作为催化剂存在下，在基本上介于 约40°-120℃，以高产率和纯度形成相应的已知（任选的单或二卤代或烷基取代的） - 对 - 或对 - 环戊-2-烯基酚，其是可用于合成 已知的杀虫剂。

公开(公告)号：US3923903A

公开(公告)日：1975-12-02

申请号：US41985273

申请日：1973-11-28

Applicant: BAYER AG

Inventor： IMRE LASZLO ,  KLEIN ALFONS ,  WEDEMEYER KARLFRIED

IPC: C07C47/12 ,  C07C45/00 ,  C07C45/34 ,  C07C67/00 ,  C07C45/02

CPC classification number: C07C45/34 ,  C07C47/12

Abstract: A process for the production of an Alpha - omega -dialdehyde, comprising reacting a cyclic mono-olefin in the gaseous phase with oxygen at an elevated temperature. Preferably cyclopentene or cyclohexene respectively give glutardialdehyde and adipic dialdehyde by passage through a tubular reactor with air at 0.05 to 100 atmospheres and 200* to 500*C.

Abstract translation: 一种制备α-ω-二醛的方法，包括使气相中的环状单烯烃与氧在升高的温度下反应。 优选环戊烯或环己烯分别通过具有0.05-100个大气压和200-500℃的空气的管式反应器产生戊二醛和己二醛。

公开(公告)号：US3592863A

公开(公告)日：1971-07-13

申请号：US3592863D

申请日：1969-06-06

Applicant: BAYER AG

Inventor： KLEIN ALFONS ,  WEDEMEYER KARLFRIED

IPC: C07C205/06 ,  C07C79/10

CPC classification number: C07C201/12 ,  C07C205/06

Abstract: 2,3-DDIMETHYL-2,3-BIS-(4-NITRO PHENYL)-BUTANE IS OBTAINED BY HEATING 4-NITROCUMENE IN A POLAR ORGANIC SOLVENT (E.G. DIMETHYLSULFOXIDE) IN THE PRESENCE OF A BASIC COMPOUND (E.G. SOLIUMHYDROXIDE) AND OF AN ALCOHOL WHICH IS RESISTANT TO OXIDATION (E.G. TERT. BUTANOL).