公开(公告)号：US6103919A

公开(公告)日：2000-08-15

申请号：US111487

申请日：1998-07-07

申请人： David Anthony Schiraldi ,  Sheldon Christopher Sherman ,  Dhiraj Sudesh Sood ,  Mark Gilmore White

发明人： David Anthony Schiraldi ,  Sheldon Christopher Sherman ,  Dhiraj Sudesh Sood ,  Mark Gilmore White

IPC分类号： B01J31/02 ,  B01J31/04 ,  C07C2/76 ,  C07C51/353 ,  C07C67/343 ,  C07F15/00 ,  B01J31/00 ,  C07C67/00

CPC分类号： B01J31/2234 ,  B01J31/0225 ,  B01J31/0227 ,  B01J31/04 ,  B01J31/2239 ,  C07C2/76 ,  C07C51/353 ,  C07C67/343 ,  B01J2231/42 ,  B01J2531/824 ,  C07C2531/025

摘要： A catalytic process for production of biphenyl and its derivatives by coupling of substituted or unsubstituted monoaryl compounds in the presence of a catalytic system comprising at least one Pd (II) compound and a strong acid or a mixture of acids. The process provides high conversions and high selectivity under mild temperature conditions and short reaction times. The strong acid or mixture of acids has a Hammett acidity of less than about -10, and contains a predominant amount of counterions which form a weak ligand complex with palladium (II). The method is highly selective to formation of desired biaryl isomers, such as 4,4'-isomers, and allows control of the relative amounts of isomers of biaryl compounds and substituted monoaryl compounds in the final product.

摘要翻译： 在包含至少一种Pd（II）化合物和强酸或酸的混合物的催化体系存在下，通过偶联取代或未取代的单芳基化合物来制备联苯及其衍生物的催化方法。 该方法在温和的温度条件和较短的反应时间下提供高转化率和高选择性。 强酸或酸的混合物的哈米特酸度小于约-10，并且含有主要量的与钯（II）形成弱配体络合物的抗衡离子。 该方法对于所需的联芳基异构体如4,4'-异构体的形成具有高选择性，并且允许控制最终产物中联芳基化合物和取代的单芳基化合物的异构体的相对量。

公开(公告)号：US5679867A

公开(公告)日：1997-10-21

申请号：US611446

申请日：1996-03-01

申请人： David Alan Bruce ,  Mario L. Occelli ,  David Anthony Schiraldi ,  Dhiraj Sudesh Sood ,  Cindy Elyse Sullivan ,  Mark Gilmore White

发明人： David Alan Bruce ,  Mario L. Occelli ,  David Anthony Schiraldi ,  Dhiraj Sudesh Sood ,  Cindy Elyse Sullivan ,  Mark Gilmore White

IPC分类号： C07C45/49

CPC分类号： C07C45/49

摘要： The present invention is directed to a process for the carbonylation of an arylene to an arylaldehyde (e.g., toluene to tolualdehyde) in the presence of a solid acid catalyst. The process for making tolualdehyde comprises carbonylating toluene in the presence of either carbon monoxide or a source of carbon monoxide and in contact with a solid acid catalyst. The reaction is carried out at a temperature ranging from -40.degree. to 200.degree. C., and at a pressure ranging from 20-4000 psig.

摘要翻译： 本发明涉及在固体酸催化剂存在下将亚芳基羰基化成芳基醛（例如甲苯至甲苯甲醛）的方法。 制备甲苯甲醛的方法包括在一氧化碳或一氧化碳源存在下将甲苯羰基化并与固体酸催化剂接触。 反应在-40至200℃的温度下进行，压力为20-4000psig。