
	Where results make sense

Topic: Hydroxyl group

Related Topics

Carboxyl group

Carboxy group

Carbonyl

Alcohol

Anion

Carboxylic acid

Polyhydric alcohol

Organic chemistry

Phenol

Hydrogen

Richard Erlenmeyer

Redox

Lactic acid

Molecule

Citric acid

	AllRefer.com - hydroxyl group (Organic Chemistry) - Encyclopedia
		hydroxyl group[hIdrok´sil] Pronunciation Key, in chemistry, functional group that consists of an oxygen atom joined by a single bond to a hydrogen atom.
		An alcohol is formed when a hydroxyl group is joined by a single bond to an alkyl group or aryl group.
		A metal hydroxide is formed when a hydroxyl group is joined to a metal (e.g., sodium hydroxide).
	reference.allrefer.com /encyclopedia/H/hydroxyl-gr.html (171 words)

	Hydroxide - Wikipedia, the free encyclopedia
		The term hydroxyl group is used to describe the functional group -OH when it is a substituent in an organic compound.
		The hydroxyl radical, ·OH, is the neutral form of the hydroxide ion.
		Hydroxyl radicals are highly reactive and consequently short lived, however they form an important part of radical chemistry.
	en.wikipedia.org /wiki/Hydroxyl_group (217 words)

	Very basic biochemistry (Site not responding. Last check: 2007-11-05)
		Hydroxyl This group consists of an oxygen covalently bound to a hydrogen.
		amine group and a carboxyl group attached to a carbon.
		The hydroxyl group of the carboxyl of the fatty acid and a H+ of the glycerol's -OH group are displaced in a dehydration reaction.
	www.ivytech.net /twmurphy/text_pg/biochem.htm (2105 words)

	Alcohol (Site not responding. Last check: 2007-11-05)
		In chemistry, alcohol is a more general term, applied to any organic compound in which a hydroxyl group (-OH) is bound to a carbon atom, which in turn is bound to other hydrogen and/or carbon atoms.
		When necessary, the position of the hydroxyl group is indicated by a number between the alkane name and the "ol": propan-1-ol in the first case, propan-2-ol in the second.
		of the hydroxyl group and are very weak acids, weaker than water except for methanol, but still stronger than ammonia or acetylene.
	www.bidprobe.com /en/wikipedia/a/al/alcohol.html (1394 words)

	carboxyl group on Encyclopedia.com (Site not responding. Last check: 2007-11-05)
		Carboxylic acids are compounds whose molecules contain a carboxyl group that is joined to a hydrogen atom, an alkyl group, or an aryl group by a single bond to its carbon atom.
		The four main types of reactions of carboxylic acids are chiefly due to either the weak acidity of the hydroxyl hydrogen or to the difference in electronegativity between carbon and oxygen.
		The second and third types are similar to reactions of the carbonyl group ; the carboxyl group may be thought of as a carbonyl group joined to a hydroxyl group.
	www.encyclopedia.com /html/c1/carbxylgr.asp (499 words)

	Alcohols and Ethers
		Identify the longest continuous chain of carbons in which the hydroxyl group is attached to one of the carbons in the chain.
		If the hydroxyl group of a phenol is the principal group, it is given the number 1, and the compound is named as a substituted phenol.
		+) on the hydrogen of the hydroxyl group.
	www.chem.latech.edu /~deddy/chem252/AlcoholEther.htm (1825 words)

	hydroxyl group on Encyclopedia.com (Site not responding. Last check: 2007-11-05)
		Effect of Acid Groups in Hydroxyl Functional Resins on the Properties of Polyester-Urethane Powder Coatings.
		Hydroxyl radical and hypochlorous acid scavenging activity of small Centaury (Centaurium erythraea) infusion.
		Influence of hydroxyl functionalized hyperbranched polymers on the thermomechanical and morphological properties of epoxy resins.
	www.encyclopedia.com /html/h1/hydroxyl-gr.asp (418 words)

	SparkNotes: Carbohydrates: Terms
		The sugar is a five-sided ring consisting of two hydroxyl groups, as in ribonucleic acid (RNA), or one hydroxyl group as in deoxyribonucleic acid (DNA).
		Glucose - A six-carbon monosaccharide composed of hydroxyl groups in its cyclic form and an aldehyde group in its linear form.
		Hydroxyl group - A chemical group consisting of an oxygen atom covalently bonded to a hydrogen atom.
	www.sparknotes.com /health/carbohydrates/terms.html (1678 words)

	Biology
		The carbonyl group is a section of the functional groups that introduce the concepts of aldehydes and ketones.
		This groups consists of a single carbon atom which is double bonded to an oxygen atom and also to a hydroxyl group.
		The hydroxyl group is a memeber of the functional groupsand consists of a hydrogen atom joined to an oxygen atom by a polar covalent bond.
	www.msu.edu /~browerst/ChFiveVoc.html (425 words)

	Nomenclature and Properties of Alcohols and Ethers
		The hydroxyl group is not to be confused with the hydroxide ion which is a negatively charged Oxygen bonded to a hydrogen.
		Identify the longest contineous chain of carbons in which the Hydroxyl group(s) are attached to one of the carbons in the chain.
		The polar water molecules are attracted to the Hydroxyl group by hydrogen bonding that occurs between the hydrogens of the water molecules and the Oxygen of the alcohol or ether.
	members.aol.com /logan20/nom_alc.html (1933 words)

	Alcohol Reactivity
		Many functional groups have a characteristic suffix designator, and only one such suffix (other than "ene" and "yne") may be used in a name.
		When the hydroxyl functional group is present together with a function of higher nomenclature priority, it must be cited and located by the prefix hydroxy and an appropriate number.
		In each case the hydroxyl group is converted to an ester of a strong acid.
	www.cem.msu.edu /~reusch/VirtualText/alcohol1.htm (2583 words)

	Anti-allergic hydroxybiphenyl compounds - Patent 4650813 (Site not responding. Last check: 2007-11-05)
		A pharmaceutical composition according to claim 1, wherein R.sub.1 is a hydroxyl group, R.sub.2 is a hydrogen atom and R.sub.3 is a group of the formula --CH.dbd.CH--CHO.
		A pharmaceutical composition according to claim 1, wherein R.sub.1 is a hydroxyl group, R.sub.2 is a hydrogen atom and R.sub.3 is a hydroxyl group.
		A method for treating delayed hypersensitivity reactions according to claim 6, wherein R.sub.1 is a hydroxyl group, R.sub.2 is a hydrogen atom and R.sub.3 is a hydroxyl group.
	www.freepatentsonline.com /4650813.html (2009 words)

	Regioselective protection of myo-inositol orthoesters – recentdevelopments (Site not responding. Last check: 2007-11-05)
		We theorized that since sulfonyl groups are less prone to migration among hydroxyl groups (as compared to acyl groups), and also posses two oxygen atoms which could aid in the stabilization of the C-4 alkoxide, disulfonylation of the triols 1 and 2 would result in the formation of the corresponding symmetrical 4,6-disulfonates 50.
		It is pertinent to mention that the use of sulfonate groups for the protection of alcohols is not usually encountered during organic synthesis because of the difficulties in their deprotection.
		Furthermore, replacement of a methylene group in adamantane by an oxygen atom is known to appreciate the extent of retention of configuration during solvolysis.
	www.arkat-usa.org /ark/journal/2002/I07_Kessar/SK-397S/397D.asp (3099 words)

	Chemistry 1408 Test One (Site not responding. Last check: 2007-11-05)
		The position of the hydroxyl group (–OH) group on carbon 2.
		The position of the hydroxyl group (–OH) group on carbon 3.
		The position of the hydroxyl group (–OH) group on carbon 5.
	hal.lamar.edu /~sessumga/tests/testone.html (229 words)

	CHE 415 - General Biochemistry I - Mechanisms of Substrate Recognition by Enzymes (Site not responding. Last check: 2007-11-05)
		O label was consistently incorporated into the 1-hydroxyl group of the NAM residue, indicating that the bond broken was that connecting the 1-carbon of NAM to the oxygen atom in the glycosidic linkage.
		Water is then allowed to attack the positively charged intermediate directly, providing a hydroxyl ion to the carbocation to produce the neutral and stable product, and a proton (hydrogen ion) to reprotonate the carboxyl group at Glu35 and regenerate the enzyme.
		Based on the crystallographic data and later experiments designed to check hypotheses concerning the roles of specific amino acid residues, it was determined that the key histidine residues, His12 and His119, assist in the hydrolysis of the phosphodiester linkage by trading protons through the substrate.
	people.uis.edu /efish1/Che415/Lectur14/lectur14.htm (2543 words)

	Phenolic Sheet (Site not responding. Last check: 2007-11-05)
		Although similar to alcohols, phenols have unique properties and are not classified as alcohols (since the hydroxyl group is not bonded to a ''saturated'' carbon atom).
		The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids.
		OH and its structure is that of a hydroxyl group (-OH) bonded to a phenyl ring; it is thus an aromatic compound.
	www.blownspeakers.com /pages3/67/phenolic-sheet.html (523 words)

	Articles - Alcohol (Site not responding. Last check: 2007-11-05)
		When necessary, the position of the hydroxyl group is indicated by a number between the alkane name and the "ol": propan-1-ol for CH propan-2-ol for CH Sometimes, the position number is written before the IUPAC name: 1-propanol and 2-propanol.
		Propyl alcohol may be n-propyl alcohol or isopropyl alcohol depending on whether the hydroxyl group is bonded to the 1st or 2nd carbon on the propane chain.
		For instance, tertiary alcohols react with hydrochloric acid to produce tertiary alkyl halides, where the hydroxyl group is replaced by a chlorine atom.
	gaple.com /articles/Alcohol?mySession=55aee7d9557427412ec6e60d459f732a (2186 words)

	[No title]
		The carboxyl functional group is polar, both at the carbonyl part and at the hydroxyl part because of the difference in electronegativity value of carbon and oxygen, and oxygen and hydrogen.
		The carboxyl group differs from a hydroxyl group in having a delocalized negative charge and this results in resonance stability.
		ESTERS - are formed from a carboxylic acid and an alcohol, where the alcohol replaces the hydroxyl group on the carboxyl group.
	www.clas.ufl.edu /users/tmullins/BCH3023/fall98/lecturenotes8.html (922 words)

	LECTURE 1
		Organic molecules that possess a hydroxyl group are often refered to as alcohols.
		A functional group similar to the hydroxyl group is the sulfhydryl g roup, -SH.
		This group has C forming a double bond with O. When carbon is in a carbonyl group it can therefore bind only with three atoms.
	www.ucc.uconn.edu /~giardina/LECTURE5.html (1353 words)

	unit03-sect03-les02-lessonc (Site not responding. Last check: 2007-11-05)
		Add the hydroxyl group to carbon #2 of the parent chain.
		Phenol is an alcohol in which the hydroxyl group is a substituent of a benzene ring.
		The name consists of the root of the word phenyl (which is used to identify benzene rings) and the suffix ol which represents a hydroxyl group.
	www.cdli.ca /courses/chem2202/unit03/section03/lesson02/3-lesson-c.htm (185 words)

	HYDROXYL GROUP - Definition
		An -OH or alcohol group on a larger molecule.
		The oxygen is single-bonded to the hydrogen and has one free bond to the rest of the molecule.
		Molecules with one or more hydroxyl groups are called alcohols.
	www.hyperdictionary.com /dictionary/hydroxyl+group (52 words)

	Naming Organic Compounds - Alcohols
		The parent chain must be the longest that includes the carbon holding the OH group.
		Number according to the end closest to the -OH group regardless of where alkyl substituents are.
		Alchohols containing more than one hydroxyl group are also called polyalcohols.
	www.angelfire.com /bc2/OrgChem/alcohols.html (133 words)

	Chemical Reactivity (Site not responding. Last check: 2007-11-05)
		The functional group of the alcohols is the hydroxyl group, -OH.
		The most reactive site in an alcohol molecule is the hydroxyl group, despite the fact that the O-H bond strength is significantly greater than that of the C-C, C-H and C-O bonds, demonstrating again the difference between thermodynamic and chemical stability.
		Na Some examples of alcohol substitution reactions using this approach to activating the hydroxyl group are shown in the following diagram.
	www.cem.msu.edu /~reusch/VirtualText4/alcohol1.htm (2585 words)

	Reactions Involving Alcohols (Site not responding. Last check: 2007-11-05)
		Unlike alkyl halides, alcohols undergo nucleophilic substitutions poorly because of the sluggish leaving group ability of the Hydroxyl group.
		The mesylate group or the Tosylate group is a far better leaving group, better than even the protonaed Hydroxyl group.Nucleophilic reactions occur much faster and yields of substitution product are much improved.
		The reaction involves the initial protonation of the Hydroxyl group of the alcohol.
	members.aol.com /logan20/alc_rx.html (911 words)

	[No title] (Site not responding. Last check: 2007-11-05)
		Without the allyl protecting group, the substituent is a hydroxyl group that is prone to easy protonation in the first step, and also in every subsequent step which involves a base.
		Its pKa is lower than that of the hydrogen that is otherwise removed in the first step because oxygen is an electronegative atom.
		Changing each hydroxyl substituent into an allyl group is a good idea because it increases the yield of the desired product by preventing inadvertent intramolecular reactions involving a deprotonated hydroxyl group.
	www.umich.edu /~chemh215/W04HTML/SSG1/1.5/question.htm (98 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Energy Citations Database (ECD) Document #6004652 - Catalytic activity of the hydroxyl group produced by NO/sub 2/ adsorption on Ca-exchanged zeolites
		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.
		Catalytic activity of the hydroxyl group produced by NO/sub 2/ adsorption on Ca-exchanged zeolites
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6004652 (140 words)

	hydroxyl group
		is formed when a hydroxyl group is joined by a single bond to an
		Related content from HighBeam Research on: hydroxyl group
		Cure of secondary carbamate groups by melamine-formaldehyde resins.
	www.infoplease.com /ce6/sci/A0824738.html (172 words)

	Find in a Library: The chemistry of the hydroxyl group
		Find in a Library: The chemistry of the hydroxyl group
		To find a library, type in a postal code, state, province, or country.
		WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
	www.worldcatlibraries.org /wcpa/ow/a3d801f718985a56.html (39 words)

	APATITE (Calcium (Fluoro-, Chloro-, Hydroxyl-) Phosphate)
		Chemistry: Ca (OH,F,Cl), Calcium (Fluoro, Chloro, Hydroxyl) Phosphate
		Apatite is actually three different minerals depending on the predominance of either fluorine, chlorine or the hydroxyl group.
		These ions can freely substitute in the crystal lattice and all three are usually present in every specimen although some specimens have been close to 100% in one or the other.
	mineral.galleries.com /minerals/phosphat/apatite/apatite.htm (330 words)

Try your search on: Qwika (all wikis)