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Acetic acid (E)-4-(2-oxo-cyclohexyl)-but-2-enyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99706-13-5

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99706-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99706-13-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,0 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99706-13:
(7*9)+(6*9)+(5*7)+(4*0)+(3*6)+(2*1)+(1*3)=175
175 % 10 = 5
So 99706-13-5 is a valid CAS Registry Number.

99706-13-5Downstream Products

99706-13-5Relevant articles and documents

Palladium-Catalyzed Decarboxylative Allylic Alkylation of Allylic Acetates with β-Keto Acids

Tsuda, Tetsuo,Okada, Masahiro,Nishi, Sei-ichi,Saegusa, Takeo

, p. 421 - 426 (2007/10/02)

In the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium, β-keto acids react with allylic acetates at ambient temperature to produce α-allylic ketones in good yields with quantitative decarboxylation.This palladium-catalyzed decarboxylative allylic alkylation of allylic acetates with β-keto acids is characterized by high regio- and stereoselectivity.Allylation of β-keto acid takes place at the carbon atom bearing a carboxyl group.Allylic alkylation of allylic acetate with β-keto acid occurs at the less substituted end of the allyl group.The resultant carbon-carbon double bond of the α-allylic ketone has the E configuration.Allylic alkylation of lactone 25 with benzoylacetic acid proceeds preferably with retention of configuration, indicative of trans attack of the enolate on the (?-allyl)palladium intermediate from the opposite side of palladium even in the coexistence of free carboxylic acids.

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