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64053-59-4

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64053-59-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64053-59-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,0,5 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 64053-59:
(7*6)+(6*4)+(5*0)+(4*5)+(3*3)+(2*5)+(1*9)=114
114 % 10 = 4
So 64053-59-4 is a valid CAS Registry Number.

64053-59-4Relevant articles and documents

MONO(m-SUBSTITUTED) CHLOROACETYLDIARYLAMINES IN THE STOLLE REACTION

Przheval'skii, N. M.,Grandberg, I. I.

, p. 716 - 719 (2007/10/02)

The effect of substituted (OCH3, Cl) on the ratio of the isomeric N-aryloxindoles formed in the Stolle reaction from mono(m-substituted) chloroacetyldiarylamines was studied.It was shown by means of gas-liquid chromatography (GLC) and PMR spectroscopy that in the case of the methoxy group electrophilic substitution occurs only in the ring activated by the substituent.The presence of a halogen atom leads only to 1-(m-chlorophenyl)oxindole.The results show that high selectivity of the attack by the carbonium ion on the phenyl rings with electron-donor and electron-acceptor substituents is also retained in the case of intramolecular electrophilic substitution under conditions of kinetic control.

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