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75907-18-5

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75907-18-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75907-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,9,0 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 75907-18:
(7*7)+(6*5)+(5*9)+(4*0)+(3*7)+(2*1)+(1*8)=155
155 % 10 = 5
So 75907-18-5 is a valid CAS Registry Number.

75907-18-5Relevant articles and documents

Efficient synthesis of 4-ethoxycarbonyl pyrazolin-5-one derivatives

Jung, Jae C.,Watkins, E Blake,Avery, Mitchell A.

, p. 3767 - 3777 (2002)

Concise and efficient methods for the preparation of 3-substituted 4-ethoxycarbonylpyrazolin-5-ones are described. The synthetic strategies involve carbon-acylation in the presence of base, followed by ring cyclization with hydrazine or hydrazine monohydrochloride.

Pd-catalyzed carbonylation for the construction of tertiary and quaternary carbon centers with sp3 carbon partners

Lu, Wei,Li, Yang,Wang, Chao,Xue, Dong,Chen, Jian-Gang,Xiao, Jianliang

supporting information, p. 5243 - 5249 (2014/07/08)

The first examples of a Pd-catalyzed carbonylation of aryl boronic acids with sp3 carbon partners are presented. Various boronic acids were shown to react with 1,3-diesters and 1,3-diketones to afford structurally unique carbonyl compounds. By

TRANSMISSION OF SUBSTITUENT EFFECTS IN PARA SUBSTITUTED BENZOYLMALONATE DERIVATIVES

Bankowska, Zofia,Zadrozna, Irmina,Bochenska, Joanna

, p. 461 - 467 (2007/10/02)

Acidity constants and enol contents of ethyl benzoylmalonate and its para derivatives (CH3O, CH3, Cl, CN, NO2) were determined in 75 vol.percent ethanol-water solutions.Acidity constants of keto and enol forms were calculated and correlated with substituents constants ?p.IR spectra and enol contents were also determined in CCl4 solutions.

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