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2,3,4,7,8,9,-hexahydro-2,2,7,7-tetramethylbenzo<1,2-b;4,5-b'>-dipyran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19206-84-9

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19206-84-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19206-84-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,2,0 and 6 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19206-84:
(7*1)+(6*9)+(5*2)+(4*0)+(3*6)+(2*8)+(1*4)=109
109 % 10 = 9
So 19206-84-9 is a valid CAS Registry Number.

19206-84-9Downstream Products

19206-84-9Relevant academic research and scientific papers

Alkylation of Phenol And Hydroquinone by Prenol in the Presence of Organoaluminum Catalysts

Chukicheva, I. Yu.,Fedorova,Koroleva,Kuchin

, p. 1 - 6 (2018/02/19)

Prenylphenols and 2,2-dimethylbenzopyrans were synthesized via alkylation of phenol and hydroquinone with prenol in the presence of organoaluminum catalysts, i.e., aluminum phenoxide and isopropoxide. Reaction products were isolated and characterized. Sev

Acid-Induced Broadening of 1H N.M.R. Signals in the 6-Hydroxychroman and 5-Hydroxydihydrobenzofuran Series

Al-Khayat, Isam,Dean, Francis M.,France, Steven N.,Matkin, David A.,Orabi, Mohamed O. A.,et al.

, p. 1301 - 1310 (2007/10/02)

Acids at least as strong as trichloroacetic acid induce line broadening in the 1H n.m.r. spectra of 6-hydroxychroman and 5-hydroxy-2,3-dihydrobenzofuran derivatives.The effect is specific for derivatives of hydroquinone although it is a weak in the absenc

Acid-catalysed Condensation of Isoprene with Phenols. Formation of 2,2-Dimethylchromans

Ahluwalia, Vinod K.,Arora, Krishnan K.,Jolly, Ravinder S.

, p. 335 - 338 (2007/10/02)

A novel method of nuclear isopentenylation which gives exclusively 2,2-dimethylchromans has been achieved by the direct condensation of phenols, viz. resorcinol, quinol, pyrogallol, and phloroglucinol, with 2-methylbuta-1,3-diene (isoprene) in the presence of orthophosphoric acid as catalyst.Condensation of 2-methylbut-3-en-2-ol with phenols in the presence of aqueous citric acid has been reinvestigated.

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