Hydroxy compds alcohols

Isethionate, C20ll> N4O9S2, yellow crystals, discolored by light, mp 286 (dec). Freely sol in water. Soly in alcohol —1.0 g/100 ml. Practically insol in ether. pH of a 1% aq soln 3.3 to 5.3. Solns show strong yellow fluorescence under uv light. Solns should be freshly prepared. Although the hydroxy compd is more stable in soln, such solns should not be stored and must not be used if cloudy. 

Liquid. d 1.0306. mp —78. bp 57. Flash pt <60. Practically insol in water, glycerol- Miscible with benzene, carbon tetrachloride, ethanol, ethylene glycol, ether, ethyl acetate. Reacts with hydroxy compds to form ethers with sulfides, ammonia, amines or metal hypoiodites to give the corresp propargyl compds with aldehydes and ketones to give -acetylenic alcohols. Undergoes isomerization. 

Startg. alcohol in ether treated with p-methoxybenzyl trichloroacetimidate and a little (0.3 mol%) trifiuoromethanesulfonic acid at room temp, for 10 min - product. Y 77%. The method is mild, applicable to sterically hindered hydroxyl groups, and tolerates a wide range of both acid- (epoxide, bisspiroketal, acetonide, silyl) and base-sensitive (ester, mesyl, silyl) functions, even in 1,2- and 1,3-diol systems furthermore, there is no epimerization at the a-position of carbonyls or P-elimination of P-hydroxy compds. F.e.s. N. Nakajima et al.. Tetrahedron Letters 29,4139-42 (1988). 

These compds may be modified by monocar-boxy lie acids or poly hydroxy alcohols. This definition includes the polycarbonates (qv), which are a well-defined segment of the general class of polyesters. Unsaturated polyesters, which are produced when any of the reactants contain non-aromatic unsaturation, can be cross-linked or copolymerized with an un-saturated copolymerizable monomer. The formulas and properties of the class polyester are as varied and extensive as the reactants themselves. For specific information on the various sub-classes and sub-sub classes, the following refs should be consulted 9, 10, II, 16a, 17,18,... 

Hydroxy and Amino Compounds, Explosives from. A number of commercially available amino alcohols have been condensed with 2,4-dichlorobenzene to give products which, when nitrated, are explosive. Products from the nitration of several glycerol derivs, guanidine derivs phenylbenzotriazole derivs were also studied. Prepn of the following compds their props are reported ... 

This compd couples with o-naphthol in an alcoholic AcOH soln to form an azo dye, which on acidification of the Na salt yields an extremely expl compd, 5,7-dinitro-8-hydroxy-4-oxy-6-cyano - 3,4-dibydro-(benzo-l,2,3-triazene), (Beil 26, 316)... 

Dimethylacetylenylcarbinol Dimethyl ethynyl carbinol Dimethylethynylmethanol 1,1-Dimethylpropargyl alcohol o,a-Dimethylpropargyl alcohol 1,1-Dimethyl propynol Ethynyidimethyl carbinol 2-Hydroxy-2-methyl-3-butyne MBY 2-Methyl-3-butyn-2-ol 2-Methylbutyn-3-ol-2 3-Methyl-1-butyn-3-ol Classification Aliphatic organic compd. 

Methyl-4-(1 -hydroxy-1 -methylethyl) benzene. See Tri methyl benzyl alcohol Methyl hydroxymethyl oleyl oxazoline CAS 14408-42-5 EINECS/ELINCS 238-387-5 Synonyms 2-(8-Heptadecenyl)-4-methyl-2-oxazol i ne-4-methanol 2-Oxazol i ne-4-methanol, 2-(8-heptadecenyl)-4-methyl-Classification Substituted heterocyclic compd. Empirical C22H41NO2 Uses Antistat in cosmetics... 

Synonyms Lauryl alcohol, polymer with oxirane, sulfuric acid ester, 2-hydroxy-1-aminopropane salt Monoisopropanolamine lauryl ether sulfate Poly(oxy-1,2-ethanediyl), o-sulfo-cu-(dodecyloxy)-, compd. with 1-amino-2-propanol... 

CAS 58-56-0 EINECS/ELINCS 200-386-2 Synonyms Adermine hydrochloride 3-Hydroxy-4,5-dihydroxymethyl-2-methylpyridine HCI 3-Hydroxy-4,5-dimethylol-a-picoline hydrochloride 5-Hydroxy-6-methyl-3,4-pyridinedicarbinol hydrochloride 5-Hydroxy-6-methyl-3,4-pyridinedimethanol hydrochloride 2-Methyl-3-hydroxy-4,5-bis (hydroxymethyl) pyridine hydrochloride Pyridoxine hydrochloride Pyridoxinium chloride Pyridoxinum hydrochloride Pyridoxol hydrochloride Vitamin Be hydrochloride Classification Substituted aromatic compd. Empirical CsHnNOs CIH Properties Colorless to wh. platelets or cryst. powd., odorless sol. in water, alcohol, acetone, propylene glycol si. sol. in other org. soivs. insol. in ether, chloroform m.w. 205.66 m.p. 204-206 C (dec.) pH 2.0-3.5 (5% aq.)... 

Carboxylic acid esters. A mixture of acetic acid, 1.5 eqs. (trimethylsilyl)ethoxyacety-lene, and a little yellow HgO in 1,2-dichloroethane treated with benzyl alcohol and a little DMAP, and stirred at 40° for 25 min - benzyl acetate. Y 83%. This method is simple and suitable for compds. containing acid- and/or moisture-sensitive groups. The by-product, ethyl (trimethylsilyl)acetate, is volatile and easily removed. F.e. and with a little p-TsOH, also lactones and lactams (from the respective hydroxy- and amino-acids), and dipeptides, s. Y. Kita et al.. Synthesis 1989, 334-7. 

Oxo compds. from alcohols. Ba(Mn04)2 added to a soln. of benzhydrol in acetonitrile, and the mixture refluxed for 1 h - benzophenone. Y 99%. Ba(Mn04)2 is a mild, stable oxidant, efficiently oxidizing prim, and sec. alcohols in aprotic media, whilst leaving double bonds unaffected sec. benzylic hydroxyl groups are oxidized more rapidly than non-benzylic hydroxy groups. F.e., also oxidation of (3-hydroxyketones, and preparation of disulfides from mercaptans, s. H. Firouzabadi et al.. Synthesis 1989, 378-80. 

Synthesis of alcohols from oxido compds. via hydroxy-1,3-dithianes... 

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