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Topic: BINAP

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	BINAP - Wikipedia, the free encyclopedia
		In organic chemistry, BINAP, an acronym used for 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl, is an important chiral ligand widely used in asymmetric synthesis.
		Enantioselective organic reactions catalyzed by BINAP complexes using transition metals such as ruthenium, rhodium, and palladium have been reported, with asymmetric hydrogenation catalyzed by Rh- and Ru-BINAP being pioneered by Ryoji Noyori, winner of the 2001 Nobel Prize in Chemistry, and his co-workers.
		Assymmetric hydrogenation of methyl 3-oxobutanoate to (R)-Methyl 3-hydroxybutanoate with a ruthenium BINAP catalyst in Organic Syntheses, Coll.
	en.wikipedia.org /wiki/BINAP (266 words)

	BINAP: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-11-04)
		BINAP is an acronym used for 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl, EHandler: no quick summary.
		Both the R and S enantiomer[For more, click on this link]s are commercially available.
		BINAP is prepared from BINOL (1,1'-bi-2-naphthol) via the bis-triflate[Follow this hyperlink for a summary of this subject].
	www.absoluteastronomy.com /encyclopedia/b/bi/binap4.htm (220 words)

	Ryoji Noyori - Autobiography
		The combined use of the BINAP ligand and a chiral diamine effects asymmetric hydrogenation of a range of aromatic, hetero-aromatic, and olefinic ketones.
		BINAP chemistry is now utilized worldwide in research laboratories and also at the industrial level.
		Synthesis of 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl (BINAP), an Atropisomeric Chiral Bis(triaryl)phosphine, and Its Use in the Rhodium(I)- Catalyzed Asymmetric Hydrogenation of a-(Acylamino)acrylic Acids.
	nobelprize.org /chemistry/laureates/2001/noyori-autobio.html (3142 words)

	High yield synthesis and structures of some achiral and chiral (diphosphine)tetracarbonylchromium(0) chelate complexes ... (Site not responding. Last check: 2007-11-04)
		Tetracarbonyl(norbornadiene)chromium(0) was used as complexation reagent in the synthesis of tetracarbonylchromium chelate complexes of dppe, dppb, dppf, DIOP, BINAP, and Tol-BINAP.
		The axial CO ligands are bent away from the BINAP ligands by 23°.
		In an attempt to prepare the tetracarbonylchromium(0) complex of (R)-8b the ligand was treated with 2 in boiling THF for 30 min to give a 99% yield of the complex (R)-9b, which was obtained as a yellow, crystalline, air-sensitive material (Scheme 3).
	www.arkat-usa.org /ark/journal/2004/I13_Krohn/1112/KK-1112F.asp (2405 words)

	Chiral solid catalyst, its preparation and its use for the production of substantially enantiomerically pure products - ...
		A process for the preparation of a catalyst according to claim 1, wherein the zeolite is impregnated with a binap complex.
		A process according to claim 12, wherein the BEA topology zeolite is first impregnated with the binap ligand and thereafter with the metal, thereby forming the complex in situ on the zeolite.
		In an attempt to immobilise binap based complexes via impregnation on zeolites, it was surprisingly found that, when a zeolite, preferably a zeolite of the BEA topology, is impregnated with a metal-binap containing solution, a highly active and enantioselective solid catalyst is generated, catalysing among others the hydrogenation of.beta.-ketoesters at room temperature.
	www.freepatentsonline.com /5997840.html (4647 words)

	Catalysis by organometallic complexes in supercritical carbon dioxide
		Rate expression was developed for tiglic acid hydrogenation in methanol catalyzed by fluorinated ruthenium-BINAP as well as by the conventional ruthenium-BINAP complexes.
		)BINAP exhibited different reactivity and enantioselectivity from those of BINAP for the enantioselective hydrogenation of tiglic acid in methanol.
		)BINAP has lower reactivity but has higher enantioselectivity at a high hydrogen pressure than those of BINAP at the same condition.
	digitalcommons.uconn.edu /dissertations/AAI3089743 (406 words)

	INFORMEX® - CMP Information - Press Room/Important Links (Site not responding. Last check: 2007-11-04)
		The ultimate objective of the licensing agreement is to enable Phoenix to use its own patented technology to manufacture compounds that would have been difficult or expensive to produce using alternative chemical routes.
		'We are excited to explore the potential of combining the clean reducing power of Ruthenium BINAP with the specialist technology developed by Phoenix whereby the use of tube reactors and short residence times with this catalyst can have a dramatic and positive influence on the yield, quality and chiral integrity of the products formed.
		We have tested a number of BINAP catalysts and we have found that the Great Lakes catalyst is one of the most active species, offering short reaction times, high substrate to catalyst ratios and excellent enatioselectivity.
	www.informex.org /pressroom/GLPhoenix.htm (394 words)

	DIAM-BINAP, POLY-BINAP: Recyclable Enantioselective Catalysts
		The structure of BINAP, which is currently the most effective and most general ligand for enantioselective catalysis in the homogeneous phase, has been modified by adding two amine groups to form Diam-BINAP, which renders it polymerisable to produce a polyurea type material with a BINAP ligand in its main chain.
		Poly-BINAP has the same type of symmetry as BINAP and its enantioselectivity is identical to that of BINAP and the best homogeneous systems currently in use.
		Moreover, the high molecular weight means that it is insoluble in most solvents, so it can readily be separated from the product and recycled simply by filtering.
	www.cnrs.fr /Cnrspresse/n385/html/en385a12.htm (258 words)

	Prof
		had suggested that BINAP would bridge the two Co centers but we were able to obtain a crystal structure of (BINAP)Co showing BINAP chelating a single Co atom.
		We are now investigating how the alkyne and alkene portions of Pauson-Khand substrates bind to (BINAP)Co Preliminary studies have shown that the chelating coordination mode of BINAP does not change after the coordination of an alkyne.
		Deactivated alkenes will be added to this system to see if the resulting complex can be “frozen” before turnover to the Pauson-Khand product occurs.
	www.ch.ic.ac.uk /gibson/jen_pkr.htm (533 words)

	Asymmetric Catalysis Special Feature Part I: Toward efficient asymmetric hydrogenation: Architectural and functional ... (Site not responding. Last check: 2007-11-04)
		(binap) (9) (18, 19), although excellent for the
		(binap) (9) is used, acetic acid is produced
		The weak carboxylic acid is unable to generate
	intl.pnas.org /cgi/content/full/101/15/5356 (2923 words)

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		BinaP's Xanga Site - 11/25/2005 7:16:04 AM There is nothing that can be
		Posted 11/25/2005 at 7:16 AM - email it
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	www.xanga.com /BinaP/394192428/item.html (99 words)

	Intramolecular Diene Cyclozirconation
		This reduction is thought to proceed by complexation of the intermediate Ru-H species with the ester carbonyl with subsequent delivery of the nucleophilic H to the ketone.
		-keto ester would fit the twist of the BINAP ligand and the other would not, we thought that one enantiomer of the ketone might reduce much more rapidly than the other.
		In the event (Table 1) we found that the racemic
	valhalla.chem.udel.edu /zirconium.html (1317 words)

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