scholarly journals Ternary Copolymerization of Trimethylvinyloxysilane, Styrene, and Acrylic Esters Catalyzed by Organoaluminum Compounds

1981 ◽  
Vol 13 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Tadamichi Hirabayashi ◽  
Kenji Yokota
Keyword(s):  
Organoaluminum Compounds ◽  
Acrylic Esters

scholarly journals Catalytic Systems Based on Cp2ZrX2 (X = Cl, H), Organoaluminum Compounds and Perfluorophenylboranes: Role of Zr,Zr- and Zr,Al-Hydride Intermediates in Alkene Dimerization and Oligomerization

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
Lyudmila V. Parfenova ◽  
Pavel V. Kovyazin ◽  
Almira Kh. Bikmeeva ◽  
Eldar R. Palatov
Keyword(s):  
Diffusion Coefficients ◽  
Organoaluminum Compounds ◽  
Zirconium Hydride ◽  
Nmr Studies ◽  
Catalytic Systems ◽  
Selective Formation

The activity and chemoselectivity of the Cp2ZrCl2-XAlBui2 (X = H, Bui) and [Cp2ZrH2]2-ClAlEt2 catalytic systems activated by (Ph3C)[B(C6F5)4] or B(C6F5)3 were studied in reactions with 1-hexene. The activation of the systems by B(C6F5)3 resulted in the selective formation of head-to-tail alkene dimers in up to 93% yields. NMR studies of the reactions of Zr complexes with organoaluminum compounds (OACs) and boron activators showed the formation of Zr,Zr- and Zr,Al-hydride intermediates, for which diffusion coefficients, hydrodynamic radii, and volumes were estimated using the diffusion ordered spectroscopy DOSY. Bis-zirconium hydride clusters of type x[Cp2ZrH2∙Cp2ZrHCl∙ClAlR2]∙yRnAl(C6F5)3−n were found to be the key intermediates of alkene dimerization, whereas cationic Zr,Al-hydrides led to the formation of oligomers.

Preparation of organoaluminum compounds by hydrozirconation-transmetalation

1979 ◽  
Vol 101 (13) ◽  
pp. 3521-3531 ◽  
Author(s):  
Denise B. Carr ◽  
Jeffrey Schwartz
Keyword(s):  
Organoaluminum Compounds

SOME REACTIONS OF ORGANOALUMINUM COMPOUNDS WITH NITROGEN-CONTAINING BASES

1963 ◽  
Vol 41 (5) ◽  
pp. 1359-1367 ◽  
Author(s):  
Neil R. Fetter ◽  
Bodo Bartocha ◽  
Frederick E. Brinckman Jr. ◽  
Donald W. Moore
Keyword(s):  
Linear Structure ◽  
Structural Formula ◽  
Organoaluminum Compounds

The reactions of Me3Al with Me2NNMe2 and Me2NCH2NMe2 have yielded complexes whose n.m.r. spectra suggest cyclic structures. They have the formulas Me3Al:Me2NNMe2 and Me3Al:Me2NCH2NMe2 respectively. Me3Al reacts with Me2NCH2CH2NMe2 to form a complex with a linear structure and the formula Me3Al:Me2NCH2CH2NMe2:AlMe3.The reactions of H3Al:NMe3 with several methyl hydrazines have yielded the following compounds: [—Al(HNNHMe)NHNMe—]n, [—HAlNNMe2—]n, H2Al—NHNEt2, [(—HAlNNEt2—):NMe3]n, and H2Al—NMe2. No reaction occurred between H3Al·(Et2O)n and tetramethylhydrazine and the reaction of 3 moles of H2NNMe2 with 1 mole of H3Al:NMe3 yielded a compound for which no structural formula could be assigned, but which had emperical formula C4H15N5Al.

An unusual enhancement of catalytic activity in biphasic catalysis: The rhodium catalyzed hydroformylation of acrylic esters

1998 ◽  
Vol 129 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Georges Fremy ◽  
Eric Monflier ◽  
Jean-François Carpentier ◽  
Yves Castanet ◽  
André Mortreux
Keyword(s):  
Catalytic Activity ◽  
Biphasic Catalysis ◽  
Acrylic Esters

A New Synthesis of Thiocyanatoalkyl (Meth)Acrylic Esters

1992 ◽  
Vol 22 (4) ◽  
pp. 617-628 ◽  
Author(s):  
Marie-Christine Berthe ◽  
Yves Fort ◽  
Paul Caubère
Keyword(s):  
New Synthesis ◽  
Acrylic Esters

HIGHLY DIASTEREOSELECTIVE DIELS-ALDER REACTIONS OF ACRYLIC ESTERS INCORPORATED INTO A VARIETY OF HEXOPYRANOSIDES

2001 ◽  
Vol 20 (7&8) ◽  
pp. 519-535 ◽  
Author(s):  
Takayuki Nagatsuka ◽  
Shuhei Yamaguchi ◽  
Kiichiro Totani ◽  
Ken-ichi Takao ◽  
Kin-ichi Tadano
Keyword(s):  
Diels Alder ◽  
Acrylic Esters
Sign in / Sign up

Export Citation Format

Share Document