seven novel NImNHP‐type pincer imidazolylphosphineruthenium complexes has been synthesized and fully characterized. The use of hydrogenation of benzonitrile as a benchmark test identified [RuHCl(CO)(NImNHPtBu)] as the most active catalyst. With its stable Ru−BH4 analogue, in which chloride is replaced by BH4, a broad range of (hetero)aromatic and aliphaticnitriles, including industrially interesting
已合成并充分表征了一系列七个新型的N Im N H P型钳型咪唑基膦膦钌配合物。使用苯甲腈加氢作为基准测试,确定了[RuHCl(CO)(N Im N H P t Bu)]是最具活性的催化剂。凭借其稳定的Ru-BH 4类似物(其中氯化物被BH 4替代),已在温和且无碱的条件下氢化了多种(杂)芳族和脂肪族腈,包括工业上有用的己二腈。
Selective Catalytic Hydrogenations of Nitriles, Ketones, and Aldehydes by Well-Defined Manganese Pincer Complexes
Hydrogenations constitute fundamental processes in organic chemistry and allow for atom-efficient and clean functional group transformations. In fact, the selective reduction of nitriles, ketones, and aldehydes with molecular hydrogen permits access to a green synthesis of valuable amines and alcohols. Despite more than a century of developments in homogeneous and heterogeneous catalysis, efforts toward
A convenient and efficient catalyst system for the hydrogenation of aliphaticnitriles towards the corresponding primary amines in high to excellent yields is presented. In addition, aromaticnitriles are reduced smoothly, too. The use of low catalyst loadings and molecular hydrogen make this protocol an attractive methodology.
NANOFUNCTIONAL SILICA PARTICLES AND MANUFACTURING METHOD THEREOF
申请人:The University of Tokushima
公开号:EP2233437A1
公开(公告)日:2010-09-29
Provided are nanofunctional silica particles having excellent functionality and quality, and capable of being mass-produced at low costs. According to the present invention, there are provided nanofunctional silica particles including a coating layer containing one or more silica compounds selected from the group consisting of mercaptopropyl trimethoxysilane (MPS), mercaptopropyl triethoxysilane (MPES), mercaptopropyl methyldimethoxysilane (MPDMS), trimethoxy[2-(7-oxabicyclo[4.1.0]-hept-3-yl)ethyl]silane (EpoPS), thiocyanatopropyl triethoxysilane (TCPS), acryloxypropyl trimethoxysilane (ACPS), and aminopropyl trimethoxysilane (APS); and functional particles in the coating layer, and being used in imaging, assay, diagnosis, treatment or the like, medicine or bioresearch.
INITIATOR SYSTEM FOR CATIONIC POLYMERIZATION AND POLYMERIZATION METHOD USING SAME
申请人:China Petroleum & Chemical Corporation
公开号:EP2481760A1
公开(公告)日:2012-08-01
The present invention discloses an initiating system for cationic polymerization and a polymerization process. The present application relates to an initiating system for cationic polymerization of cationic-polymerizable monomers, and a process for cationic polymerization of cationic-polymerizable monomers by using the initiating system. The present invention particular involves an initiating system for cationic polymerization of cationic-polymerizable monomers in an aqueous reaction medium, and a process for cationic polymerization of cationic-polymerizable monomers by using the initiating system in an aqueous reaction medium.