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335451-49-5

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335451-49-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 335451-49-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,5,4,5 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 335451-49:
(8*3)+(7*3)+(6*5)+(5*4)+(4*5)+(3*1)+(2*4)+(1*9)=135
135 % 10 = 5
So 335451-49-5 is a valid CAS Registry Number.

335451-49-5Relevant articles and documents

Preparation and reactions of 4-, 5-, and 6-methoxy substituted 3-lithioindoles and 3-indolylzinc derivatives

Amat,Seffar,Llor,Bosch

, p. 267 - 275 (2001)

The preparation of 4-, 5-, and 6-methoxy substituted 3-lithio-1-(trialkylsilyl)indoles 4b-d by metalation of the corresponding 3-bromoindoles, and their reactions with iodomethane, DMF, ethylene oxide and aziridines are reported. Transmetalation of 3-lithioindoles 4b-d with ZnCl2 afforded 3-indolylzinc chlorides 11b-d, which underwent Pd(0)-catalyzed cross-coupling reactions with 2-halopyridines to give 4-, 5-, and 6-methoxy substituted 3-(2-pyridyl)indoles.

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