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127813-30-3

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127813-30-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127813-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,8,1 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127813-30:
(8*1)+(7*2)+(6*7)+(5*8)+(4*1)+(3*3)+(2*3)+(1*0)=123
123 % 10 = 3
So 127813-30-3 is a valid CAS Registry Number.

127813-30-3Relevant articles and documents

Multiple Roles of the Pyrimidyl Group in the Rhodium-Catalyzed Regioselective Synthesis and Functionalization of Indole-3-carboxylic Acid Esters

Jiang, Hui,Gao, Shang,Xu, Jinyi,Wu, Xiaoming,Lin, Aijun,Yao, Hequan

, p. 188 - 194 (2016)

A regioselective synthesis of indole-3-carboxylic acid esters from anilines and diazo compounds has been realized by making use of the pyrimidyl group-assisted rhodium-catalyzed C-H activation and C-N bond formation. The reaction proceeds under mild conditions, exhibits good functional group tolerance and scalability. Reutilization of the pyrimidyl directing group in the resulting products provided an efficient strategy for further C-7 functionalization of indoles. Moreover, the pyrimidyl moiety could be readily removed as a leaving group to offer various free N-H indoles.

INTRAMOLECULAR DIELS-ALDER REACTIONS OF PYRIMIDINES: SYNTHESIS OF TRICYCLIC ANNELATED PYRIDINES.

Stolle, W. A. W.,Marcelis, A. T. M.,Koetsier, A.,Plas, H. C. van der

, p. 6511 - 6518 (2007/10/02)

2-(2-Trimethylsilylethynylphenyl-X)-pyrimidines (2, X=O, S, NAc, CH2, CO) easily undergo intramolecular Diels-Alder reaction with inverse electron demand, to give tricyclic annelated pyridines in excellent yields.The synthesis of 2 and the cycloaddition r

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