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132731-64-7

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132731-64-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132731-64-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,7,3 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 132731-64:
(8*1)+(7*3)+(6*2)+(5*7)+(4*3)+(3*1)+(2*6)+(1*4)=107
107 % 10 = 7
So 132731-64-7 is a valid CAS Registry Number.

132731-64-7Relevant articles and documents

A novel camphorsulfonyloxylactonization of alkenoic acids

Zhu, Min,Sun, Na-Bo,Li, He,Yan, Jie

, p. 436 - 440 (2010)

(Chemical Equation Presented) The novel reaction of [hydroxyl (((+)-10-camphorsulfonyl)oxy)iodo]benzene (1) with alkenoic acids was reported. When 1 reacted with various 4-pentenoic acids in CH3CN, camphorsulfonylactons were obtained in excellent yields in short times, some had two diastereoisomers, whereas 1 reacted with 5-hexenoic acid, giving middle yield of camphorsulfonylacton; however, 3-butenoic and trans-3-hexenoic acids reacted with 1 slowly in CH2Cl2, only unsaturated lactones were provided.

Facile one-pot preparation of [hydroxy(sulfonyloxy)iodo]arenes from iodoarenes with MCPBA in the presence of sulfonic acids

Yamamoto, Yukiharu,Togo, Hideo

, p. 2486 - 2488 (2007/10/03)

Various [hydroxy(sulfonyloxy)iodo]arenes were simply and efficiently obtained in high yields from the reaction of iodoarenes and MCPBA in the presence of sulfonic acids in a small amount of chloroform at room temperature, through a one-pot procedure. Georg Thieme Verlag Stuttgart.

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