公开(公告)号：US3755185A

公开(公告)日：1973-08-28

申请号：US3755185D

申请日：1971-07-29

Applicant: BAYER AG

Inventor： WALDMANN H ,  SCHWERDTEL W ,  SWODENK W

IPC: C01B15/017 ,  C01B15/02

CPC classification number: C01B15/017

Abstract: Anhydrous solutions of hydrogen peroxide, containing about 3 to 60 percent by weight of H2O2 in a saturated nitrogen heterocyclic compound having 4 to 6 ring members and a carbonyl group adjacent to the nitrogen atom are obtained by adding the heterocyclic compound to an aqueous solution of hydrogen peroxide and removing the water, as by distillation. The heterocyclic compound is a lactam or N-acylated structure, N-methyl-pyrrolidone being preferred.

Abstract translation: 通过将杂环化合物加入到氢的水溶液中，得到含有约3〜60重量％的H 2 O 2的饱和氮杂环化合物，其具有4〜6个环成员和与氮原子相邻的羰基的无水溶液 过氧化物并通过蒸馏除去水。 杂环化合物是内酰胺或N-酰化结构，优选N-甲基吡咯烷酮。

公开(公告)号：US3845112A

公开(公告)日：1974-10-29

申请号：US16752971

申请日：1971-07-29

Applicant: BAYER AG

Inventor： WALDMANN H ,  SCHWERDTEL W ,  SWODENK W

IPC: C07C407/00 ,  C07C409/24 ,  C07C409/26 ,  C07C73/10

CPC classification number: C07C407/00 ,  C07C407/003 ,  C07C409/26 ,  C07C409/24

Abstract: 1. IN THE PREPARATION OF A PERCARBOXYLIC ACID BY REACTION AT A TEMPERATURE OF ABOUT -20 TO 100*C. OF A CARBOXYLIC ACID OR ITS ANHYDRIDE WITH HYDROGEN PEROXIDE, THE CARBOXYLIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF ALKANOIC, HALOGEN SUBSTITUTED ALKANOIC, BENZOIC AND NITRO-SUBSTITUTED BENZOIC ACIDS, THE IMPROVEMENT WHICH COMPRISES ADDING TO A DILUTE AQUEOUS HYDROGEN PEROXIDE SOLUTION A PHOSPHORUS COMPOUND OF THE FORMULA

R1-(X)M-P(=O)(-(V)N-R2)-(Z)P-R3

WHEREIN: X, Y AND Z EACH INDIVIDUALLY IS AN OXYGEN ATOM, AN $N-C1-C6 ALKYL OR AN $N-C4-SC7 CYCLOALKYL GROUP, M, N AND P EACH INDIVIDUALLY IS 0 OR 1, R1 R2 AND R3 EACH INDIVIDUALLY IS A C1-C6 ALKYL OR C4-C6 CYCLOALKYL RADICAL OPTIONALLY SUBSTITUTED WITH HALOGEN, OH, LOWER ALKOXY, CN OR PHENYL; OR A PHENYL RADICAL OPTIONALLY SUBSTITUTED WITH HALOGEN, OH, LOWER ALKYL OR ALKOXY, CARBO-LOWER ALKOXY OR CN, OR TWO OF R1, R2 AND R3 AND R3 TOGETHER COMPRISE AN ALKYLENE RADICAL FORMING A 5-TO 7-MEMBERED HETEROCYCLIC RING CONTAINING PHOSPHORUS AS A HETERO ATOM, REMOVING THE WATER FROM SAID AQUEOUS HYDROGEN PEROXIDE PHOSPHORUS COMPOUND-CONTAINING SOLUTION AT LEAST IN PART, AND USING THE RESIDUE TO EFFECT AND REACTION WITH SAID CARBOXYLIC ACID OR ITS ANHYDRIDE.

公开(公告)号：US3766212A

公开(公告)日：1973-10-16

申请号：US3766212D

申请日：1971-07-29

Applicant: BAYER AG

Inventor： WALDMANN H ,  SCHERDTEL W ,  SWODENK W

IPC: C07D309/30 ,  C07C51/285 ,  C07D315/00 ,  C07D9/00

CPC classification number: C07D315/00 ,  C07C51/285

Abstract: E-CAPROLACTONE IS PREPARED BY OXIDIZNG CYCLOHEXANOL, HYDROLYZING THE CYCLOHEXANONE PEROXIDE FROMED TO HYDROGEN PEROXIDE AND CYCLOHEXANONE AND EXTRACTING THE HYDROGEN PEROXIDE WITH WATER IN A FIRST STAGE; MIXING THE AQUEOUS HYDROGEN PEROXIDE SOLUTION FROM THE FIRST STAGE WITH ONE OR MORE ORGANIC PHOSPHORUS COMPOUNDS IN A SECOND STAGE; REMOVING WATER FROM THE SECOND STAGE REACTION MIXTURE AND REACTING SAME WITH AN ALIPHATIC FATTY AICD, AGAIN REMOVING WATER RO FORM A PERCARBOXYLIC ACID SOLUTION WHICH IS REACTED WITH THE CYCLOHEXANONE FORMED IN THE FIRST STAGE TO PRODUCE E-CAPROLACTONE.