Half-sandwich rare-earth metal tris(alkyl) ate complexes catalyzed phosphaguanylation reaction of phosphines with carbodiimides: an efficient synthesis of phosphaguanidines
作者:Wangyang Ma、Ling Xu、Wen-Xiong Zhang、Zhenfeng Xi
DOI:10.1039/c5nj01136a
日期:——
Half-sandwich Y/Li ate complex displays better catalytic activity for phosphaguanylation reaction of phosphines with carbodiimides than the neutral yttrium complexes.
半夹 Y/Li 配合物在磷胍基化反应中显示出比中性钇配合物更好的催化活性。
METAL-LIGAND COMPLEX, OLEFIN POLYMERIZATION CATALYST DERIVED THEREFROM, AND OLEFIN POLYMERIZATION METHOD UTILIZING THE CATALYST
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:US20160311837A1
公开(公告)日:2016-10-27
A metal-ligand complex has formula (I): wherein J, L, M, R
1
, R
2
, R
3
, R
4
, X, p, q, and r are defined herein. The metal-ligand complex is useful as a catalyst or catalyst precursor for olefin polymerization.
Highly Active Dinuclear Titanium(IV) Complexes for the Catalytic Formation of a Carbon–Heteroatom Bond
作者:Jayeeta Bhattacharjee、Adimulam Harinath、Indrani Banerjee、Hari Pada Nayek、Tarun K. Panda
DOI:10.1021/acs.inorgchem.8b01766
日期:2018.10.15
The catalytic efficiency of the dinuclear complex depends on the cooperative effect of the TiIV ions, the systematic variation of the intermetallic distance, and the ligand’s steric properties of the complex, which enhances the reaction rate. Most interestingly, this is the first example of catalytic insertion of various E–H bonds into the carbodiimides using a single-site catalyst because only the titanium-mediated
TITANIUM-CONTAINING FILM FORMING COMPOSITIONS FOR VAPOR DEPOSITION OF TITANIUM-CONTAINING FILMS
申请人:L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
公开号:US20160137675A1
公开(公告)日:2016-05-19
Titanium-containing film forming compositions are disclosed as well as methods of synthesizing the same and methods of forming Titanium-containing films on substrates via vapor deposition processes using the Titanium-containing film forming compositions. The Titanium-containing film forming compositions comprise a precursor having the formula Ti(R
5
Cp)
2
(L), wherein each R is independently H, an alkyl group, or R′
3
Si, with each R′ independently being H or an alkyl group; L is selected from the group consisting of formamidinates (N
R,R′
-fmd) or amidinates (N
R, R″
-amd).
Methods for the Preparation of Thiazolidinethione Indene-Based Chiral Auxiliaries
申请人:Olivo Horacio F.
公开号:US20100179330A1
公开(公告)日:2010-07-15
Methods for the preparation of indene-based thiazolidinethiones are provided comprising contacting 1-amino-2,3-dihydro-1H-inden-2-ol, or a substituted derivative thereof, with an acid under suitable reaction conditions to provide a first intermediate; and contacting the first intermediate with an alkali xanthate in the presence of an alkali hydroxide under suitable reaction conditions to provide a compound of formula (III),
wherein R
1
-R
8
are defined herein.