化合物[Cp'Mn(CO)2 ] Se 2(1)与伯a烷和膦反应,并且羰基金属片段Cp'Mn(CO)2(Cp'= CH 3 C 5 H 4)从硒中迁移出来到砷或磷中心发生。这些反应的产物是二硒代-二硬脂酸酯(4)或二硒代-二磷酸酯(5)。在of烷与1的反应过程中,以非常高的产率获得了a啶二烯络合物(2)。具有PSeP单元(6)的化合物可以作为膦类与1的反应副产物分离出来。
报道了一种新的合成途径,该反应合成了具有高度官能化的膦取代基的Ni(P 2 N 2)2 2+型配合物,并且研究了这些催化剂的固定化作用。Ni(P 2 N 2)2 2+配合物已作为氢析出反应(HER)的均相和表面附着分子电催化剂得到了广泛研究。基于合成后修饰的P ArBr 2 N Ph 2的合成被开发并在这里描述。分离并表征了膦酸酯改性的配体及其相应的镍配合物。膦酸酯衍生物的随后脱保护提供了第一Ni(P 2 N 2)2 2+催化剂,该催化剂可以通过侧链膦酸酯基团共价连接到电极上,而无需参与重要的侧链胺基团。通过连接新型膦酸酯官能化的Ni(P 2 N 2)2 2+对介孔TiO 2电极进行表面改性配合物,这些化合物提供了电催化材料,在温和的pH值和低的超电势下,证明在水溶液中持续存在HER的能力是稳定的。我们直接将新的配体与先前报道的利用胺部分进行表面附着的复合物进行了比较。使用HER作为基准反
p-BrC6H4) with Ru3(CO)12 yielded clusters of the type [(μ2-H)2Ru3(CO)9(μ3-PR)] and [Ru3-(CO)9(μ3-PR)2]. The reaction of C6H5AsH2 with Ru3(CO)12 gave [(μ2-H)2Ru3-(CO)9(μ3-AsC6H5)] and [Ru2(CO)6(μ2-As(C6H5)H)2]. All the compounds have been studied by IR and NMR (31P and 1H) spectroscopy and the structure of [(μ2-H)2Ru3(CO)9(μ3-P(p-CH3OC6H4))] has been determined by single crystal X-ray diffraction (R
A Copper(I) Platform for One-Pot P–H Bond Formation and Hydrophosphination of Heterocumulenes
作者:Thomas M. Horsley Downie、Mary F. Mahon、John P. Lowe、Rowan M. Bailey、David J. Liptrot
DOI:10.1021/acscatal.2c02199
日期:2022.7.15
bonded species, including secondary and primary phosphines as well as PH3, in excellent conversions. These phosphines can be subsequently applied in the copper(I)-catalyzed hydrophosphination of heterocumulenes in a telescoped, one-pot fashion. This approach yielded 12 phosphaureas, 3 phosphaguanidines, and 2 phosphathioureas in moderate to excellent yields without the need to handle toxic, pyrophoric
Michaelis, Justus Liebigs Annalen der Chemie, 1896, vol. 293, p. 265
作者:Michaelis
DOI:——
日期:——
[EN] PHOTOSENSITIVE COMPOSITIONS USEFUL IN THREE-DIMENSIONAL PART-BUILDING AND HAVING IMPROVED PHOTOSPEED<br/>[FR] COMPOSITIONS PHOTOSENSIBLES SERVANT A LA FORMATION D'ELEMENTS TRIDIMENSIONNELS ET POSSEDANT UNE VITESSE PHOTOGRAPHIQUE AMELIOREE
申请人:W.R. GRACE & CO.-CONN.
公开号:WO1995013565A1
公开(公告)日:1995-05-18
(EN) A method useful for stereolithography that yields enhanced photospeed, as well as a photocurable polymer composition well adapted for use with same, are disclosed. A preferred combination includes 1,2-dimethoxy-2-phenyl acetophenone, benzophenone, and triphenyl phosphine combined with a polyurethane (meth) acrylate oligomer.(FR) L'invention concerne un procédé s'utilisant en stéréolithographie et présentant une vitesse photographique amplifiée, ainsi qu'une composition de polymère photodurcissable conçue pour être utilisée avec ledit procédé. Une combinaison préférée comprend 1,2-diméthoxy-2-phényle acétophénone et phosphine de triphényle combinée à un oligomère de (méth)acrylate de polyuréthane.
[EN] ALPHA-AMINO ACID BENZOTHIAZOLYLTHIO ESTER AS INTERMEDIATES FOR MANUFACTURE OF ACE INHIBITORS AND PROCESS FOR PREPARATION THEREOF<br/>[FR] NOUVEAUX INTERMEDIAIRES POUR LA FABRICATION D'INHIBITEURS ACE ET PROCEDES DE PREPARATION CORRESPONDANTS
申请人:LUPIN LTD
公开号:WO2005010028A1
公开(公告)日:2005-02-03
Novel compounds of formula (I), being intermediates for the manufacture of ACE inhibitors of formula (II); wherein R is lower alkyl of 1-4 carbon atoms or phenyl, R1 is hydrogen or lower alkyl of 1-4 carbon atoms, R2 is lower alkyl of 1-4 carbon atoms or lower alkyl of 1-4 carbon atoms with attached amino or substituted amino group, and Z is amino acid or its derivative. Novel method for preparation of compounds of formula (I) and formula (II) and preparation of lisinopril in high diastereomeric selectivity. Compound of formula (I) is prepared either by reaction of compound of formula (IV), wherein Y is hydroxy group, R1 is lower alkyl of 1-4 carbon atoms and R, R2 are as above with 2,2'-dithio bis[benzthiazol]-(2)] of formula (V), or reaction of compound of formula (IV); wherein Y is halogen and R,R1,R2 are same as previous compound of formula (IV) with 2-mercaptobenzothiazole of formula (VI).