Synthesis of a New Type of Water-Soluble Phosphines by addition of hydrophilic thiols to vinylphosphines. Preparation of the rhodium and palladium complexes

1997 ◽  
Vol 339 (1) ◽  
pp. 38-43 ◽  
Author(s):  
Eckhard Paetzold ◽  
Manfred Michalik ◽  
Günther Oehme
Keyword(s):  
Palladium Complexes ◽  
Water Soluble ◽  
Water Soluble Phosphines ◽  
New Type

Phosphanorbornadienephosphonates as a New Type of Water-Soluble Phosphines for Biphasic Catalysis

1996 ◽  
Vol 61 (10) ◽  
pp. 3531-3533 ◽  
Author(s):  
Stéphane Lelièvre ◽  
François Mercier ◽  
François Mathey
Keyword(s):  
Water Soluble ◽  
Biphasic Catalysis ◽  
Water Soluble Phosphines ◽  
New Type

Synthesis of sulfated mono- and ditertiary phosphines, complex chemistry and catalysis

2001 ◽  
Vol 79 (5-6) ◽  
pp. 1040-1048 ◽  
Author(s):  
H Gulyás ◽  
A Dobó ◽  
J Bakos
Keyword(s):  
Water Soluble ◽  
Rhodium Complex ◽  
Rhodium Complexes ◽  
Water Soluble Phosphines ◽  
Nucleophilic Cleavage ◽  
New Type ◽  
Cyclic Sulfates ◽  
Complex Chemistry ◽  
Zwitterionic Complexes ◽  
Molecular Framework

Cyclic and bicyclic sulfates have been prepared from commonly available alcohols. Nucleophilic cleavage of the cyclic sulfates affords a new type of water-soluble mono- and ditertiary phophines bearing -OSO3Li groups in distinguished positions in the molecular framework. Both phosphines have amphiphilic character. Reactions of the chiral 2 and the dppp analogue 5 with [Rh(COD)Cl]2 and Pt(PhCN)2Cl2 provide novel zwitterionic complexes. Rhodium complexes of 2 and 5 have been successfully applied in liquid biphasic hydroformylation of styrene and octene-1. When the rhodium complex of 5 was used as catalyst in hydroformylation of styrene, less then 4 ppm rhodium could be detected in the organic phase.Key words: cyclic sulfates, water soluble phosphines, amphiphilic character, Rh complexes, Pt complexes, hydroformylation.

ChemInform Abstract: Approaches to New Water-Soluble Phosphines.

ChemInform ◽  
2010 ◽  
Vol 23 (49) ◽  
pp. no-no
Author(s):  
T. N. MITCHELL ◽  
K. HEESCHE-WAGNER
Keyword(s):  
Water Soluble ◽  
Water Soluble Phosphines

ChemInform Abstract: Construction of Water-Soluble Phosphines: New Advances in Aqueous Organometallic Chemistry

ChemInform ◽  
2010 ◽  
Vol 31 (9) ◽  
pp. no-no
Author(s):  
Kattesh V. Katti ◽  
Douglas E. Berning ◽  
Charles J. Smith ◽  
Hariprasad Gali
Keyword(s):  
Organometallic Chemistry ◽  
Water Soluble ◽  
Water Soluble Phosphines

A new water-soluble bacterial NADH: fumarate oxidoreductase

2020 ◽  
Vol 367 (20) ◽  
Author(s):  
Yulia V Bertsova ◽  
Ilya P Oleynikov ◽  
Alexander V Bogachev
Keyword(s):  
Nadh Dehydrogenase ◽  
Reductase Activity ◽  
Domain Architecture ◽  
Water Soluble ◽  
Fumarate Reductase ◽  
Anaerobic Conditions ◽  
New Type ◽  
Prosthetic Groups ◽  
Low Rate ◽  
Covalently Bound

ABSTRACT The cytoplasmic fumarate reductase of Klebsiella pneumoniae (FRD) is a monomeric protein which contains three prosthetic groups: noncovalently bound FMN and FAD plus a covalently bound FMN. In the present work, NADH is revealed to be an inherent electron donor for this enzyme. We found that the fumarate reductase activity of FRD significantly exceeds its NADH dehydrogenase activity. During the catalysis of NADH:fumarate oxidoreductase reaction, FRD turnover is limited by a very low rate (∼10/s) of electron transfer between the noncovalently and covalently bound FMN moieties. Induction of FRD synthesis in K. pneumoniae cells was observed only under anaerobic conditions in the presence of fumarate or malate. Enzymes with the FRD-like domain architecture are widely distributed among various bacteria and apparently comprise a new type of water-soluble NADH:fumarate oxidoreductases.

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