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1418143-59-5

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1418143-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1418143-59-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,8,1,4 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1418143-59:
(9*1)+(8*4)+(7*1)+(6*8)+(5*1)+(4*4)+(3*3)+(2*5)+(1*9)=145
145 % 10 = 5
So 1418143-59-5 is a valid CAS Registry Number.

1418143-59-5Upstream product

1418143-59-5Relevant articles and documents

Mechanism and scope of the MnIII-initiated oxidation of β-ketocarbonyl compounds: Furan synthesis

Wang, Chao,Li, Zhilong,Ju, Yeming,Koo, Sangho

, p. 6976 - 6985 (2013/03/13)

Unless the MnIII-produced carbon-radical from β-ketocarbonyl compounds undergoes smooth intramolecular addition to alkenes, it traps molecular oxygen in the reaction medium to produce a peroxy radical, which reacts with the neighbouring carbonyl group to form 1,2-dioxetane. Thermal decomposition of 1,2-dioxetane completes the oxidation to produce α-oxo ester. This oxidation seems to be general at 50°C under aerobic conditions, and can be catalytic for MnIII in AcOH with ultrasonic irradiation. Thus, the development of a new synthetic method for diversely substituted furans has been accomplished based on a couple of the MnIII-initiated domino oxidation of β-ketocarbonyl compounds with a suitable α-allylic substitution. Copyright

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