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Topic: Alkoxy

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	OhioLINK ETD: Gopalakrishnan, Sandhya
		Alkoxy radicals were produced in a supersonic free-jet expansion and probed via laser induced fluorescence spectroscopy.
		The diagnostics for the alkoxy radicals was further extended by studies aimed at obtaining their molecular structure.
		A few bands in the vibrationally resolved spectra of the primary alkoxy radicals, 1-propoxy, 1-butoxy, and 1-pentoxy were studied under high resolution to resolve the rotational structure.
	rave.ohiolink.edu /etdc/view?acc_num=osu1051024461 (240 words)

	Access Story: Modeling Molecular Fate
		Another first-generation alkoxy radical with different connectivity formed during the degradation of isoprene.
		To determine which reactions are most likely, the team used the HP Superdome cluster to three-dimensionally model the isoprene and the energy of the transition state for each reaction.
		For each individual reaction of each first- and second-generation of alkoxy radicals, Dibble's team must determine the energy barrier of the transition state (or the ruggedness of the mountain pass).
	www.ncsa.uiuc.edu /News/Access/Stories/isoprene/mmfate3.html (333 words)

	Diazomethane cycloadditions to gamma-alkoxy-alpha,beta-unsaturated esters: a violation of the inside alkoxy theory? (Site not responding. Last check: 2007-10-10)
		For this reason, we decided to study their behaviour towards diazomethane, and we wish to report that these reactions are not only completely regioselective (as already known in the literature; refs 2,3, but are often highly diastereoselective as well.
		The terminal atoms on the diazomethane moiety in the transition structure for the cycloaddition reaction are not strongly charged.
		The correlation between the amount of negative charge on the 1,3-dipole and the reaction stereoselectivity was demonstrated by previous studies.
	www.ch.ic.ac.uk /ectoc/echet96/papers/026 (2065 words)

	Alkoxy radicals from isoprene: Reaction Pathways (Site not responding. Last check: 2007-10-10)
		The yields of these species are determined by the site of OH addition to isoprene and the fate of the alkoxy radicals; the latter topic is our focus.
		The OH-initiated degradation of isoprene in the atmosphere is expected to produce four
		Intramolecular hydrogen bonding, double H-atom transfer, and prompt chemistry of peroxy and alkoxy radicals from isoprene.
	www.esf.edu /chemistry/dibble/presentations/isoprene.htm (284 words)

	G1. Unimolecular Reactions of Alkoxy Radicals: Experiment and Theory
		Because of their role as key intermediates in the degradation of VOCs reactions of alkoxy radicals have been subject of many recent investigations.
		The theoretical work has also addressed two further questions which arise in the investigation of the decomposition reactions of halogenated alkoxy radicals: a) the importance of chemical activation, and b) the possibility of halogen elimination from the ?-carbon atom (in the case of C
		Therefore, the thermal and chemically activated decomposition of CF O (Y=F,H) radicals has been investigated [5] and prompt decomposition yields have been derived by an approximate theoretical treatment for the C-C-bond cleavage of activated CF CFHO radicals, as they originate from the exothermic reaction of the corresponding peroxy-radical with NO in the troposphere.
	www.cstl.nist.gov /div838/kinetics2001/agenda/d_session/d4/d4.htm (417 words)

	Atmospheric Fate of Unsubstituted Alkoxy and Carbonyl Radicals (ResearchIndex) (Site not responding. Last check: 2007-10-10)
		Atmospheric Fate of Unsubstituted Alkoxy and Carbonyl Radicals
		Abstract: Introduction Alkoxy (R 1 C(R 2)(R 3)O.) and Carbonyl (RC(.)O) radicals are important intermediates in the degradation chain of hydrocarbons.
		Both classes of radicals are subject to competing reaction chan-nels leading to different products which exhibit different ozone formation potentials: Alkoxy radicals - (1) Reaction with O 2 (k O2, => aldehyde/ketone + HO 2); (2) thermal decomposition (k dis, => aldehyde/ketone + alkyl/H); (3) isomerization (k iso, => hydroxyaldehyde/hydroxyketone)....
	citeseer.ist.psu.edu /471963.html (232 words)

	Preparation of 2-Alkoxy-5-methoxybenzaldehydes and 2-Ethoxy-5-alkoxybenzaldehydes (Site not responding. Last check: 2007-10-10)
		Considering the possible transformation of bromo to alkoxy or hydroxy group, 2-ethoxy-5-bromobenzaldehyde (3) was used as a starting material to prepare unsymmetrical 2,5-dialkoxybenzaldehydes.
		Although phenyl tert-butyl ether was reported to be obtained in 42-46% yield by the reaction of bromobenzene and potassium tert-butoxide, [7].
		In 1969, Bacon et al., reported the conversion of halogen to alkoxy groups by the reaction of aryl halides with sodium alkoxides, using copper(I) salts as catalysts [8].
	www.erowid.org /archive/rhodium/chemistry/dialkoxybenzaldehydes.html (1366 words)

	LIF Spectra of Alkoxy Radicals (Site not responding. Last check: 2007-10-10)
		for these processes are not well known even for the alkoxy radicals derived from alkanes.
		LIF has been used with great success to monitor the abundance of small alkoxy radicals in kinetics studies, and the absence of LIF spectra of large alkoxy radicals has impeded studies of their reaction kinetics.
		We would like to use LIF to study the chemistry of large alkoxy radicals.
	web.esf.edu /dljohnson/test/tdibble/LIFspectra.htm (287 words)

	HYDROXY- AND ALKOXY-SUBSTITUTED BENZYL DERIVATIVES (JECFA Food Additives Series 48)
		The structural feature common to all members of the group is a primary oxygenated functional group bound directly to a benzene ring.
		Twenty-nine of the 46 members of this group of flavouring agents have been reported to occur naturally in food.
		In general, hydroxy- and alkoxy- derivatives of benzaldehyde and benzyl alcohol are oxidized to the corresponding benzoic acid derivatives and, to a lesser extent, reduced to the corresponding benzyl alcohol derivatives.
	www.inchem.org /documents/jecfa/jecmono/v48je15.htm (9426 words)

	Alkoxy poly (ethyleneoxy) ethyl phosphate Registration
		Alkoxy poly (ethyleneoxy) ethyl phosphate - Registration, import consent and bans
		Information on the status of this pesticide as legally registered for use, banned, cancelled or severely restricted for countries for which PAN has data.
		For detailed chemical information see the chemical detail page.
	www.pesticideinfo.org /Detail_ChemReg.jsp?Rec_Id=PC33894 (368 words)

	(WO/2003/007076) PHOTOSENSITIVE COMPOSITIONS HAVING MIXTURES OF ALKOXY AND NON-ALKOXY DIAZONIUM SALT CONTAINING ... (Site not responding. Last check: 2007-10-10)
		The imaging layer includes a total aromatic diazonium salt containing compound content of at least 10 weight percent.
		The molar ratio of the aromatic diazonium salt containing compound having an alkoxy substituent to the aromatic diazonium salt containing compound that is free of an alkoxy substituent is from about 1.0:1 to 70:1.
		Upon imagewise exposure and development, an imaged element is obtained, which is mounted on a dry printing press containing lithographic ink and used to produce printed stock.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/07076.030123 (240 words)

	Rule C-411 Hydroxy, Alkoxy and Oxo Acids (Trivial Names) (Site not responding. Last check: 2007-10-10)
		411.1 - Examples of trivial names for hydroxy and alkoxy carboxylic acids and for the corresponding acyl radicals are given in Table VII.
		The numbering of aliphatic hydroxy, alkoxy, and oxo acids is made so as to give the number 1 to a carboxyl group and the lowest possible locants to hydroxy, alkoxy, oxo and other groups [see Rule C-15.11(d)].
		Hydroxy, Alkoxy and Oxo Acids Rule C-415, Rule C-416
	www.acdlabs.com /iupac/nomenclature/79/r79_322.htm (203 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		An alkoxy radical was identified in single crystals of cytidine-3`- monophosphate x irradiated at 4.2 /sup 0/K.^Proton hyperfine couplings associated with the alkoxy radical absorption were determined from ENDOR measurements.^The magnitudes of..beta..
		proton couplings are dependent upon the conformation of the radical.^The conformation of alkoxy radicals is analyzed in terms of two dihedral angles and related to observed coupling tensors.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6572542 (173 words)

	Japanese Patent 3708589 B2 - production method of optical activity 2- alkoxy cyclohexanol derivative (Site not responding. Last check: 2007-10-10)
		Japanese Patent 3708589 B2 - production method of optical activity 2- alkoxy cyclohexanol derivative
		production method of optical activity 2- alkoxy cyclohexanol derivative
		after did with carboxylic acid ester of-which it (R, R) stands 2-alkoxy cyclohexanol of optical activity 2- alkoxy cyclohexanol derivative which does to get above-mentioned-2-alkoxy cyclohexanol with the characteristic
	cxp.paterra.com /jppatent3708589.html (374 words)

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