Hydroxynaphthoate

Hydroxy-2-naphthoic acid. (See also Beta-hydroxynaphthoic acid). 

Polymers based on these structures became available as Victrex SRP (ICI), Vectra (Hoechst) and Xydar (Amoco). It is reported that the Vectra materials are based on p-hydroxybenzoic acid and hydroxynaphthoic acid monomers, whilst Xydar is based on terephthalic acid, p-hydroxybenzoic acid and pp -dihydrox-ybiphenyl. Whilst properties vary between grades, in general they possess the following outstanding properties ... 

Chemical Name N,N-dimethyl-N-(2-phenoxyethyl)benzenemethanaminiurn hydroxynaphthoate... 

Benzethonium chloride Benzphetamine HCI Bephenium hydroxynaphthoate Bufeniode Diazoxide Ifenprodil tartrate Phenoxybenzamine HCI Propoxyphene HCI Tiopronin T ribenoside... 

Benzethonium chloride Bephenium hydroxynaphthoate Camazepam Dibutoline sulfate Doxepin HCI Furtrethonium iodide Loperamide HCI Thiothixene... 

The photo-induced exo selectivity was observed in other classic Diels-Alder reactions. Data relating to some exo adducts obtained by reacting cyclopentadiene or cyclohexadiene with 2-methyl-1,4-benzoquinone, 5-hydroxynaphtho-quinone, 4-cyclopentene-l,3-dione and maleic anhydride are given in Scheme 4.13. The presence and amount of EtsN plays a decisive role in reversing the endo selectivity. The possibility that the prevalence of exo adduct is due to isomerization of endo adduct under photolytic conditions was rejected by control experiments, at least for less reactive dienophiles. 

C4H10CIN 107-99-3) see Bephenium hydroxynaphthoate Binedaline Brompheniramine Captodiame Carbinoxamine Chlorphenamine Chlorphenoxamine Cyclopentolate Dibenzepine Diltiazem Dimetindene Doxylamine Ethoheptazine Itopride hydrochloride Meclofenoxate Mepyramine Moxisylyte Normethadone Noxiptiline Pheniramine Phenyltoloxamine Tamoxifen Toremifene Trimethobenzamide Tripelennamine Zotepine... 

CioHijNO 13468-02-5) see Bephenium hydroxynaphthoate Domiphen bromide Thenium closilate... 

Seiler and Wirz have reported a study of the photohydrolysis of eight isomeric trifluoromethylnaphthols.<144) Six of the eight isomers studied underwent hydrolysis cleanly to produce quantitative yields of the corresponding hydroxynaphthoic acids ... 

Benzofuroxan 84 forms substituted phenazine 5,10-dioxides 83 and 85 with the corresponding dihydroxybenzenes <2000H(53)2151> or 2-hydroxynaphthoic-3-acids in basic condition in good yields (Scheme 19) <2002BML415>. 

Naphthol AS is the condensation product of p-hydroxynaphthoic acid and aniline Naphtol AS is the trade name of this product sold by Hoechst AG, Germany. Pigments that are known as Naphtol AS compounds in Germany are referred to in the USA as Naphthol Reds. 

Using amine, 2-hydroxynaphthoic acid, and aromatic diamine as starting materials, there are two pathways I and II that lead to the desired products ... 

The fluorination of 2,5-dihydroxybenzo-l,4-quinone and 2-hydroxynaphtho-l,4-quinone results, as well as replacement of the carbonyl oxygen atoms by fluorines, in replacement of the hydroxy groups and addition of a hydrogen fluoride molecule across a C = C bond to give,... 

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