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(2Z,4E)-2-methyl-5-phenylpenta-2,4-dienoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20430-16-4

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20430-16-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20430-16-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,3 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20430-16:
(7*2)+(6*0)+(5*4)+(4*3)+(3*0)+(2*1)+(1*6)=54
54 % 10 = 4
So 20430-16-4 is a valid CAS Registry Number.

20430-16-4Relevant academic research and scientific papers

One step synthesis of γ-alkylidenebutenolides from simple vinyl carboxylic acids and alkenes

Yu, Chunbing,Zhang, Jian,Zhong, Guofu

supporting information, p. 9902 - 9905 (2017/09/11)

The first tandem cross-coupling/oxa-Michael addition/dehydrogenation process via rhodium chemistry is described, which provides a straightforward and atom-economical protocol for the synthesis of a wide range of valuable γ-alkylidenebutenolides. This meth

Rhodium-catalyzed regioselective olefination directed by a carboxylic group

Mochida, Satoshi,Hirano, Koji,Satoh, Tetsuya,Miura, Masahiro

scheme or table, p. 3024 - 3033 (2011/06/24)

The ortho-olefination of benzoic acids can be achieved effectively through rhodium-catalyzed oxidative coupling with alkenes. The carboxylic group is readily removable to allow ortho-olefination/decarboxylation in one pot. α,β-Unsaturated carboxylic acids

Correlation of hydrolysis and desilylation of 2-[(trimethylsilyl)methyl] acrylate derivatives in aqueous alkali solutions

Kuroda, Chiaki,Sunakawa, Takeshi,Muguruma, Yuichi

scheme or table, p. 888 - 896 (2009/03/11)

Hydrolysis and desilylation reaction of 2-[(trimethylsilyl)methyl]acrylate (=2-[(trimethylsilyl)methyl] prop-2-enoate) derivatives were studied to evaluate the effect of the presence/absence of a further conjugating substituent (Schemes 3 and 4 and Tables 1 and 2). The substrates having a nonconjugating substituent at the acrylate moiety were stable to dilute alkali conditions, and afforded simple hydrolysis products under concentrated alkali conditions. In contrast, both hydrolysis and desilylation occurred from the substrates bearing conjugated substituents at the acrylate skeleton. The difference in reactivity can be explained in terms of the stabilization of the intermediate anion.

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