Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes.

Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes. Abstract Text:

Sarah V Maifeld,Reagan L Miller,Daesung Lee,

Highly group-selective ring-closing metathesis of alkynylsilyloxy-tethered dienynes was achieved by using Grubbs first- and second-generation catalyst. The remarkable selectivity increase at higher concentration for differentiating between two alkene moieties in nearly identical steric and stereoelectronic environments is believed to be the result of a higher ring-closure rate for smaller-sized ring formation under rapid pre-equilibration of the two alkylidene species generated from either alkene moiety.

Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes. Publishing Authors By Initials

SV Maifeld,RL Miller,D Lee,

For similar organic chemicals: organosilicon compounds research abstracts see: organic chemicals: organosilicon compounds research

PUBMED ID PMID:

MEDLINE DATE:

Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Journal of the American Chemical Society

VOLUME: 126

Page Numbers: 12228-9

Journal Abbreviation: J. Am. Chem. Soc.

ISSN: 0002-7863

DAY: 6

MONTH: Oct

YEAR: 2004

Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 7503056

Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes. Keywords Mesh Terms:

KEYWORDS: Organosilicon Compounds

MESH TERMS: chemistry

Chemical & Substance for Abstract: Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes. Information

Substance Name: Organosilicon Compounds

Registry Number: 0

Grant and Affiliation Information for Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes.

AFFILIATION: Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA.

Country: United States

AGENCY: United States NIGMS

GRANT: GM08505

ACRONYM: GM

MEDLINETA: J Am Chem Soc

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Group-selective ring-closing enyne metathesis: concentration-dependent selectivity profile of alkynylsilyloxy-tethered dienynes Related Publications

• A differential response of two putative mammalian circadian regulators, mper1 and mper2, to light.
• Actual Conditions and Countermeasure of Yun-bian Old Men's Health.
• Aspirin changes the secretion rate and amino acid composition of human small intestinal mucin in subjects with ileal conduits.
• Bone morphogenetic protein-2 facilitates expression of chondrogenic, not osteogenic, phenotype of human intervertebral disc cells.
• Channel architecture in maltoporin: dominance studies with lamB mutations influencing maltodextrin binding provide evidence for independent selectivity filters in each subunit.
• Compensation. Costly to a fault.
• Design and feasibility of quick EXAFS scans for a 'broomstick' double-crystal monochromator at PLS beamline.
• Directed evolution of the lambda receptor of Escherichia coli through affinity chromatographic selection.
• Effects of dietary vitamin E supplementation on lipid oxidation and volatiles content of irradiated, cooked turkey meat patties with different packaging.
• Exclusion of high-molecular-weight maltosaccharides by lipopolysaccharide O-antigen of Escherichia coli and Salmonella typhimurium.
• Family decision making for elderly patients in the intensive care unit.
• Identification of an osteogenic protein-1 responsive element in the aggrecan promoter.
• Impairment of conjunctival glutathione secretion and ion transport by oxidative stress in an adenovirus type 5 ocular infection model of pigmented rabbits.
• Inactivation of the PTEN gene protein product is associated with the invasiveness and metastasis, but not angiogenesis, of breast cancer.
• Isolation, by affinity chromatography, of mutant escherichia coli cells with novel regulation of lamB expression.
• Longitudinal clivus fracture associated with trapped basilar artery: unusual survival with good neurological recovery.
• MPer1 and mper2 are essential for normal resetting of the circadian clock.
• Model construction on quality of family caregiving in the elderly.
• Nonredundant roles of the mPer1 and mPer2 genes in the mammalian circadian clock.
• Photoionization studies of sulfur radicals and products of their reactions.
• Posterior transarticular screw fixation for chronic atlanto-axial instability.
• Reciprocal regulation of haem biosynthesis and the circadian clock in mammals.
• Restoration of a loose implant supported crown: a case report.
• Significance of chronic epilepsy in glial tumors and correlation with surgical strategies.
• The circadian gene Period2 plays an important role in tumor suppression and DNA damage response in vivo.
• The effects of permeation enhancers on the surface morphology of the rat nasal mucosa: a scanning electron microscopy study.
• The influence of maltoporin affinity on the transport of maltose and maltohexaose into Escherichia coli.
• Tissue-specific expression, heat inducibility, and biological roles of two hsp16 genes in Caenorhabditis elegans.
• Up-regulation of MUC5AC and MUC5B mucin genes in chronic rhinosinusitis.
• [Expression of MUC3, MUC5AC, MUC6 and epidermal growth factor receptor in gallbladder epithelium according to gallstone composition]