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165543-78-2

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165543-78-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 165543-78-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,5,4 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 165543-78:
(8*1)+(7*6)+(6*5)+(5*5)+(4*4)+(3*3)+(2*7)+(1*8)=152
152 % 10 = 2
So 165543-78-2 is a valid CAS Registry Number.

165543-78-2Upstream product

165543-78-2Relevant articles and documents

Kinetics and mechanism of the aminolysis of phenyl dithiobenzoates

Oh, Hyuck Keun,Shin, Chul Ho,Lee, Ikchoon

, p. 1169 - 1174 (2007/10/02)

The kinetics and mechanism of the reactions of phenyl dithiobenzoates with anilines in acetonitrile at 55.0 deg C have been studied.The large magnitude of βx(βnuc) and the signs of cross-interaction constants, ρeXY > 0, ρYZ XZ > 0, are all consistent with the carbonyl addition mechanism in which the breakdown of the tetrahedral intermediate, T+/-, is rate limiting.The thiocarbonyl group (C=S) is found to favour amine expulsion in contrast to the carbonyl group (C=O) which favours the S-bonded nucleofuge expulsion from T+/-.The signs of cross-interaction constants, ρXY, ρYZ and/or ρXZ, are shown to provide useful mechanistic criteria for distinguishing, especially, the carbonyl addition mechanism involving the rate-limiting breakdown of the tetrahedral intermediate (T+/- from the concerted SN2 mechanism.

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