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78725-90-3

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78725-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78725-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,7,2 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 78725-90:
(7*7)+(6*8)+(5*7)+(4*2)+(3*5)+(2*9)+(1*0)=173
173 % 10 = 3
So 78725-90-3 is a valid CAS Registry Number.

78725-90-3Relevant articles and documents

Cu-Catalyzed Oxidative Thioesterification of Aroylhydrazides with Disulfides

Xie, Shimin,Su, Lebin,Mo, Min,Zhou, Wang,Zhou, Yongbo,Dong, Jianyu

, p. 739 - 749 (2021/01/09)

An alternative thioesterification reaction via copper-catalyzed oxidative coupling of readily available aroylhydrazides with disulfides is developed, in which oxidative expulsion of N2 overcomes the activation barrier between the carboxylic acid derivativ

A new method for synthesis of S-aryl-O-alkyl thiolcarbonates: Selenium-catalyzed reaction of alcohols with carbon monoxide and diaryl disulfides

Nishiyama, Yutaka,Maehira, Ken,Nakase, Junko,Sonoda, Noboru

, p. 7415 - 7417 (2007/10/03)

A unique catalytic ability of selenium has been developed. When alcohols were allowed to react with diaryl disulfides in the presence of a catalytic amount of selenium under a pressurized carbon monoxide, S-aryl-O-alkyl thiolcarbonates were obtained in moderate to good yields.

Kinetics and mechanism of the aminolysis of O-ethyl S-aryl thiocarbonates in acetonitrile

Oh, Hyuk Keun,Lee, Yun Ho,Lee, Ikchoon

, p. 131 - 135 (2007/10/03)

The Kinetics and mechanism of the reactions of O-ethyl S-(Z)aryl thiocarbonates with (X)benzylamines in acetonitrile at 45.0 °C are studied. Relatively small values of βx (βnuc) = 0.6 to approximately 0.8 and βz (βlg) = -0.5 to approximately -0.7 together with a negative cross-interaction constant ρxz (= -0.47) and failure of the reactivity-selectivity principle (RSP) are interpreted to indicate a concerted mechanism. The normal kinetic isotope effects (kH/kD = 1.3 to approximately 1.8) involving deuterated benzylamine nucleophiles suggest a hydrogen-bonded, four-center-type transition state.

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