Patent
Novel bisphosphite compounds and their metal complexes
Dirk Roettger,Dieter Hess,Klaus-Diether Wiese,Cornelia Borgmann,Armin Borner,Detlef Selent,Reinhard Schmutzler,Christine Kunze +7 more
TLDR
A bisphosphite of the formula I where R1, R2, R3 and R4 are each hydrogen, an aliphatic, alicyclic or aromatic hydrocarbon radical having from 1 to 25 carbon atoms, and may be identical or different as mentioned in this paper.Abstract:
A bisphosphite of the formula I wherein R1, R2, R3 and R4 are each hydrogen, an aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aromatic—aromatic, aliphatic-aromatic hydrocarbon or heterocyclic or aliphatic-heterocyclic group having from 1 to 50 carbon atoms, F, Cl, Br, I, —CF3, —OR7, —COR7, —CO2R7, —CO2M, —SR7, —SO2R7, —SOR7, —SO3R7, —SO3M, —CO2NR7R8, NR7R8, N═CR7R8, NH2, where R1 to R4 are identical or different and may be covalently linked to one another; R7 and R8 are each hydrogen, a substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from 1 to 25 carbon atoms, and may be identical or different; M is an alkali metal, alkaline earth metal, ammonium or phosphonium ion; Q is a substituted or unsubstituted divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aliphatic-aromatic hydrocarbon, heterocyclic or aliphatic-heterocyclic radical having from 1 to 50 carbon atoms where HO-Q-OH is a diol; W and X are each a substituted or unsubstituted aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aromatic—aromatic, aliphatic-aromatic hydrocarbon, heterocyclic or aliphatic-heterocyclic radical having from 1 to 50 carbon atoms which may be identical or different or covalently linked to one another, provided that when the phosphite oxygens linked to W and X are each linked to an aromatic ring, then they are linked to different aromatic rings, metal complexes thereof, and a method for the hydroformylation of olefins.read more
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Patent
Catalyst and method for hydrogenating aromatic compounds
Michael Gras,Alfred Kaizik,Wilfried Büschken,Axel Tuchlenski,Dietrich Maschmeyer,Kurt-Alfred Gaudschun,Frank Brocksien +6 more
TL;DR: In this paper, a ring hydrogenation of alicyclic polycarboxylic acids or esters of these, via ring hydrogenations of the corresponding aromatic polycar boxylic acid or ester, was described.
Patent
Method for producing 1-olefins using palladium carbene compounds
Matthias Beller,Ralf Jackstell,Holger Klein,Dirk Roettger,Klaus-Diether Wiese,Dietrich Maschmeyer,Axel Tuchlenski,Alfred Kaizik,Silvia Santiago Fernandez +8 more
TL;DR: In this article, a process for 1-olefins b telomerization of compounds having conjugated double bonds with a telogen in the presence of a noble metal-based catalyst, hydrogenation of the telomer and cleavage of the hydrogenated intermediate was described.
Patent
Method for producing 1-olefins by catalytically splitting 1-alkoxyalkanes
TL;DR: In this article, a method for producing 1-olefins from 1-alkoxyalkanes was proposed, by effecting a base catalyzed elimination of alcohols, and the method was applied to produce 1-octene from 1 -alkoxyoctane.
References
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Journal ArticleDOI
New Phosphorus Ligands for the Rhodium‐Catalyzed Isomerization/Hydroformylation of Internal Octenes
Journal ArticleDOI
New carbohydrate bisphosphites as chiral ligands
TL;DR: In this paper, the 2,3-bisphosphite derivatives of phenyl 4,6- O -benzylidene-β-D-glucopyranoside leads to new chelating ligands.
Patent
Asymmetric organic bis:phosphite cpds. useful as ligand for metal catalyst
TL;DR: Asymmetric bisphosphite cpds. of formula (R O)(R O)P-X-W-L-O-P(OR )(OR) (I) are new.
Journal ArticleDOI
The synthesis of cytokinin phosphates
B. Shadid,H. C. Van Der Plas +1 more
TL;DR: The bifunctional phosphorylating reagent N-morpholino O,O-bis[(6-trifluoromethyl) benzotriazolyl]phosphate was used for the preparation of ribosyl zeatin 5'-phosphates as mentioned in this paper.