公开(公告)号：US4104270A

公开(公告)日：1978-08-01

申请号：US777648

申请日：1977-03-15

Applicant: Nigel Hall ,  Raymond Price ,  Philip Martin Rowbotham

Inventor： Nigel Hall ,  Raymond Price ,  Philip Martin Rowbotham

IPC: C07F9/38 ,  B01J23/00 ,  B01J27/00 ,  B01J31/00 ,  C07B61/00 ,  C07F9/40 ,  C07C107/06

CPC classification number: C07F9/4021

Abstract: A process for the manufacture of aromatic phosphorus derivatives of the formula:Ar.PO(OR).sub.2 (1)where R is an optionally substituted alkyl, alkenyl, aralkyl, cycloalkyl or aryl radical, and Ar is an aromatic radical linked to the phosphorus atom through a carbon atom of the aromatic radical which comprises contacting a phosphorous acid diester of the formula:HO.P(OR).sub.2 (2)with an aromatic halide of the formula Ar--X in the presence of copper or a copper compound, the symbols R and Ar having the meanings stated above and X representing a halogen atom.The aromatic radical preferably contains an atom or group activating the halogen atom. The process provides an improved method for manufacture of the phosphonic acid diesters.

Abstract translation: 制备下式的芳族磷衍生物的方法：

公开(公告)号：US4048187A

公开(公告)日：1977-09-13

申请号：US689931

申请日：1976-05-25

Applicant: Brian Anderson ,  Raymond Frederick Dalton ,  Philip Martin Rowbotham

Inventor： Brian Anderson ,  Raymond Frederick Dalton ,  Philip Martin Rowbotham

IPC: C07D257/04 ,  C22B3/36 ,  C22B15/00 ,  C07F1/08 ,  C07F1/10 ,  C07F1/12

CPC classification number: C07D257/04 ,  C07C255/00 ,  C22B3/0036 ,  C22B3/0039 ,  Y02P10/234

Abstract: 5-(2-Hydroxyphenyl)tetrazoles having substituents containing at least 5 aliphatic or alicyclic carbon atoms are prepared from the corresponding o-hydroxybenzyl cyanides with alkali metal azides. These tetrazoles are useful as extracting agents in liquid-liquid extraction processes for metals, especially copper. When used in such processes in combination with o-hydroxyaryl oximes they improve the extraction kinetics of the oximes.

Abstract translation: 具有至少5个脂族或脂环族碳原子的取代基的5-（2-羟基苯基）四唑由相应的邻羟基苄基氰与碱金属叠氮化物制备。 这些四唑在金属，特别是铜的液 - 液萃取方法中可用作萃取剂。 当这些方法与邻羟基芳基肟组合使用时，它们可提高肟的提取动力学。