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acetic acid 5-acetoxy-2-acetyl-3-hydroxyphenyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

17820-33-6

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17820-33-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17820-33-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,2 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17820-33:
(7*1)+(6*7)+(5*8)+(4*2)+(3*0)+(2*3)+(1*3)=106
106 % 10 = 6
So 17820-33-6 is a valid CAS Registry Number.

17820-33-6Relevant academic research and scientific papers

Total synthesis of 3′,3?-binaringenin and related biflavonoids

Sagrera, Gabriel,Seoane, Gustavo

scheme or table, p. 2776 - 2786 (2010/10/19)

The synthesis of natural 3++,3?-binaringenin and four related biflavonoids was performed in good overall yield (15-35%) starting from readily available phloroglucinol and 4-hydroxy- or 4-methoxybenzaldehyde. Preliminary results indicate that some of these compounds have an interesting activity against S. aureus. Georg Thieme Verlag Stuttgart.

Acidic rearrangement of (benzyloxy)chalcones: A short synthesis of chamanetin

Sagrera, Gabriel,Seoane, Gustavo

scheme or table, p. 4190 - 4202 (2011/03/20)

Treatment of (benzyloxy)chalcones with trifluoroacetic acid in refluxing chloroform gave several new benzyl(hydroxy)flavanones in high yields and good regioselectivities. By using this procedure, we prepared the natural compound chamanetin in good yield from readily available reagents. Georg Thieme Verlag Stuttgart - New York.

BF3·OEt2 mediated regioselective deacetylation of polyacetoxyacetophenones and its application in the synthesis of natural products

Narender,Papi Reddy,Kumar, Brijesh

, p. 4409 - 4415 (2008/12/21)

We have developed an efficient method to regioselectively deacetylate polyacetoxyacetophenones using BF3·OEt2 in excellent yields and demonstrated the application of the procedure in the synthesis of natural products.

Deacetylation of activated acetophenones with tin(IV) chloride

Hadjeri, Mohamed,Mariotte, Anne-Marie,Boumendjel, Ahcene

, p. 463 - 464 (2007/10/03)

Activated acetophenones were deacetylated by treatment with an excess of tin(IV) chloride in 1,2-dichloroethane.

Syntheses d'aryltetrahydropyrannyl ethers

Cottet, Francoise,Cottier, Louis,Descotes, Gerard,Srivastava, Rajendra Mohan

, p. 1481 - 1486 (2007/10/02)

L'addition de methoxyphenols 1 sur le dihydropyranne en milieu acide donne des produits C- et/ou O-tetrahydropyrannyles 3 et 4 dont le pourcentage est fonction du nombre de substituants methoxy et de la force du catalyseur acide.Les aryl tetrahydropyranny

PHOTO-FRIES REARRANGEMENT: REARRANGEMENT OF ACETOXYBENZENE DERIVATIVES

Sharma, Pavan Kumar,Khanna, Rajinder Nath

, p. 159 - 162 (2007/10/02)

Photo-Fries rearrangement of 1,4-diacetoxybenzene, 1,3,5-triacetoxybenzene, 1,2,3-triacetoxybenzene and 1,2,4-triacetoxybenzene gave the corresponding mono- and di-C-acetyl migrated products.

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