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6-Bromo-1-hydroxynaphthalene, also known as 1-Hydroxy-6-bromonaphthalene, is an organic compound with the formula C10H7BrO. It is a derivative of naphthalene characterized by the presence of a hydroxyl group and a bromine atom on the naphthalene ring, making it a valuable building block for organic synthesis. This white to off-white crystalline solid has a melting point of around 157-159°C and is considered to be of low toxicity.

91270-68-7

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91270-68-7 Usage

Uses

Used in Pharmaceutical Industry:
6-Bromo-1-hydroxynaphthalene is used as an intermediate in the synthesis of pharmaceuticals for its ability to be a key component in the development of various medicinal compounds.
Used in Organic Synthesis:
It serves as a valuable building block in organic synthesis, contributing to the creation of a wide range of organic compounds due to its unique structural features.
Used in Dye Production:
6-Bromo-1-hydroxynaphthalene is used in the production of dyes, where its chemical properties allow for the creation of diverse colorants for various applications.
Used in Agrochemicals:
It is utilized in the production of agrochemicals, playing a role in the development of substances that contribute to agricultural productivity and pest control.
Used in Specialty Chemicals:
6-Bromo-1-hydroxynaphthalene finds application in the manufacturing of specialty chemicals, where its unique properties are harnessed for specific industrial needs.

Check Digit Verification of cas no

The CAS Registry Mumber 91270-68-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,7 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91270-68:
(7*9)+(6*1)+(5*2)+(4*7)+(3*0)+(2*6)+(1*8)=127
127 % 10 = 7
So 91270-68-7 is a valid CAS Registry Number.
InChI:InChI=1/C10H7BrO/c11-8-4-5-9-7(6-8)2-1-3-10(9)12/h1-6,12H

91270-68-7Upstream product

91270-68-7Relevant academic research and scientific papers

Acid-catalyzed dehydration of naphthalene-cis-1,2-dihydrodiols: Origin of impaired resonance effect of 3-substituents

Kudavalli, Jaya Satyanarayana,Boyd, Derek R.,Sharma, Narain D.,More O'Ferrall, Rory A.

supporting information; experimental part, p. 9338 - 9343 (2012/01/03)

Acid-catalyzed dehydrations of substituted naphthalene-cis-1,2-dihydrodiols occur with loss of the 1- or 2-OH group to form 2- and 1-naphthols, respectively. Effects of substituents MeO, Me, H, F, Br, I, and CN at 3-, 6-, and 7-positions of the naphthalene ring are consistent with rate-determining formation of β-hydroxynaphthalenium ion (carbocation) intermediates. For reaction of the 1-hydroxyl group the 3-substituents are correlated by the Yukawa-Tsuno relationship with ρ = -4.7 and r = 0.25 or by σp constants with ρ = -4.25; for reaction of the 2-hydroxyl group the 3-substituents are correlated by σm constants with ρ = -8.1. The correlations for the 1-hydroxyl imply a surprisingly weak resonance interaction of +M substituents (MeO, Me) with a carbocation reaction center but are consistent with the corresponding correlation for acid-catalyzed dehydration of 3-substituted benzene-cis-1,2-dihydrodiols for which ρ = -6.9 and r = 0.43. Substituents at the 6- and 7-positions of the naphthalene rings by contrast are correlated by σ+ with ρ = -3.2 for reaction of the 1-hydroxyl group and ρ = -2.7 for reaction of the 2-hydroxyl group. The unimpaired resonance implied by these substituent effects appears to be inconsistent with a previous explanation of the weak resonance of the 3-substituents in terms of imbalance of charge development and/or nonplanarity of the benzenium ring in the transition state. An alternative possibility is that the adjacent hydroxyl group interferes sterically with conjugation of +M substituents. "Hyperaromaticity" of the arenium ion intermediates does not appear to be a factor influencing this behavior.

Method for the manufacture of hydroxy aromatic monocarboxylic acids

-

, (2008/06/13)

A method for preparing hydroxy aromatic carboxylic acids, or the ester derivatives thereof, comprises the carbonylation of a hydroxy aromatic bromide in the presence of a catalytic amount of a transition element of group VIII of the Periodic Table on a carbon support, at a pH of above 8, in the absence of any promoter.The reaction is carried out at a temperature in the range of between 140oC to 200oC. The resulting products are obtained in high yields and of high purity. The method has particular applicability to the manufacture of 6-carboxy-2-naphthol and 4-hydroxy-4'-carboxy-biphenyl.

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