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119388-39-5

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119388-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119388-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,3,8 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 119388-39:
(8*1)+(7*1)+(6*9)+(5*3)+(4*8)+(3*8)+(2*3)+(1*9)=155
155 % 10 = 5
So 119388-39-5 is a valid CAS Registry Number.

119388-39-5Downstream Products

119388-39-5Relevant articles and documents

INFLUENCE OF INTRAMOLECULAR HYDROGEN BONDS ON THE TAUTOMERIC EQUILIBRIUM OF 1,3-DIKETONES

Zheglova, D.,Denkov, N.,Kol'tsov, A. I.

, p. 371 - 374 (1984)

The paper deals with a quantitative characterization of the influence of multiple intramolecular hydrogen bonds on the tautomeric equilibrium of 1,3-diketones by means of NMR-spectroscopy.The contents of the keto- and two enol forms of 1-(o-hydroxyphenyl)-1,3-butandione and 1-(o-methoxyphenyl)-1,3-butandione in tetrachloromethane, deuterochloroforme, acetone-d6 and acetonitrile-d3 are compared.The intramolecular hydrogen bond between the phenolic hydroxyl group and the aromatic carbonyl group in 1-(o-hydroxyphenyl)-1,3-butandione shifts the keto-enol equilibrium toward the keto-tautomer and enol-enol equilibrium toward the tautomer with an enolized aliphatic carbonyl group.

A Baker-Venkataraman retro-Claisen cascade delivers a novel alkyl migration process for the synthesis of amides

Ameen, Dana,Snape, Timothy J.

supporting information, p. 1816 - 1819 (2015/03/30)

A simple extension of the carbamoyl Baker-Venkataraman rearrangement has been developed. If residual water in the reaction is not strictly excluded a Baker-Venkataraman retro-Claisen cascade takes place, giving amide products, in which an alkyl group apparently migrates between two functionalities of the substrate.

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