1.3- Dihydroxy-5- benzen

Nevertheless the Elbs reaction is a valuable method for the preparation of dihydroxy benzenes. The experimental procedure is simple, and the reaction conditions are mild a variety of functional groups is tolerated. 

Dihydroxy benzene sulfonic acid Sultosilic acid piperazine salt... 

Benzenediol, quinol, or p-dihydroxy benzene [CgH4-l,4-(OH)2] has a MW of 110.1. It is a white crystalline powder formed by the reduction of p-benzoquinone [quinone, CgH4 ( 0)2],... 

It is a lipophilic compound which removes intercellular lipids that are covalently linked to the cornified envelope surrounding epithelial cells [3]. It also enhances penetration of other agents. Resorcinol (m-dihydroxy benzene) is structurally and chemically similar to phenol. It disrupts the weak hydrogen bonds of keratin [4]. Lactic acid is an alpha hydroxy acid which causes corneocyte detachment and subsequent desquamation of the stratum corneum [5]. 

Silver nitrate 1,2- and 1,4-dihydroxy-benzene oxidation to corresponding benzoquinones [208]... 

The term catechin is often used for the derivatives of catechol (1,2 dihydroxy benzene). 

Additional results of the enhancement in phenol conversion (to dihydroxy benzenes) and oxidation of allyl alcohol (to glycidol and allylic oxidation products) catalyzed by TS-1 in various solvents are illustrated in Fig. 46. In solvents with high dielectric constants, the heterolytic cleavage of the 0-0 bond... 

Interactions between tertiary aliphatic amines or N,N-dialkylanilines and substituted phenols are generally reported as models of O—H- N hydrogen bonds affording molecular complexes (equilibrium 4). A number of complexes between primary, secondary and tertiary aliphatic amines and dihydroxy benzenes (or dihydroxynaphthalenes) were isolated55 to investigate the stoichiometry of these complexes. The phenol/amine ratios observed included values of 1 1, 2 1, 3 1 and 3 2. 

The pentacoordinate silicon compounds 94,23 95,23 96-98,60 99,60,61100,61,62 101-103,60 104,61,62 105,62 106,62 and 10761,63 are monocyclic zwitterionic A5S7-silicates with an Si02FC2 skeleton. The chiral zwitterions each contain one bidentate diolato(2-) ligand that formally derives from 1,2-dihydroxy-benzene, salicylic acid, glycolic acid, oxalic acid, benzohydroximic acid (tautomer of benzohydroxamic acid), 2-methyllactic acid, or (S)-mande-lic acid. 

There are two dihydroxy benzenes that can result from reaction (3.131)— hydroquinone and pyrocatechol. It has been suggested that they react with oxygen in the following manner [55] ... 

Synonyms 1,4-Benzenediol 1,4-dihydroxy-benzene p-hydroxybenzene hydroquinol quinol Tecquinol... 

Another route starts from the corresponding (di)methyl-1,3-dihydroxy benzene which is carboxylated, and the resulting dihydroxymethylbenzoic acid is esterified. 

Trinitro-1,3-dihydroxy benzene 2,4,6-Trinitroresorcinol or STYPHNIC ACID... 

Diplumbic Dinitroresorcinol. See Basic Lead Salt of 4,6-Dinitro-l, 3-dihydroxy benzene or Lead 4,61 Din itro resorcin ate, p D1275-.R... 

Resorcinol, 1,3-dihydroxy benzene, and hydroquinone, 1, A-dihydroxybenzene, C6H602 ThCl2(C6H402)... 

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