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181149-13-3

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181149-13-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181149-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,1,4 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 181149-13:
(8*1)+(7*8)+(6*1)+(5*1)+(4*4)+(3*9)+(2*1)+(1*3)=123
123 % 10 = 3
So 181149-13-3 is a valid CAS Registry Number.

181149-13-3Downstream Products

181149-13-3Relevant articles and documents

1,1-Organoboration of Trimethyl-1-propynyltin Using Diorganoboryl-Substituted Ferrocenes

Wrackmeyer, Bernd,D?rfler, Udo,Milius, Wolfgang,Herberhold, Max

, p. 851 - 858 (2007/10/03)

The reactions of various diorganoborylferrocenes, Fc-BR2 [1, R = Me (a), Et (b), iPr (c), tBu (d), Ph (f), R2B = 9-borabicyclo[3.3.1]nonyl (e)] and 1,1′-bis(9-borabicyclo[3.3.1]nonyl)-ferrocene (2) with trimethyl-1-propynyltin (3) were studied, and the products of the 1,1-organoboration were characterized as the alkenyltin compounds 4-6 by 1H, 11B, 13C and 119Sn NMR. In the cases of 1a-1d and 1f, there is competition between the transfer of a ferrocenyl group and the other organyl groups R from boron to carbon, whereas in the case of the 9-borabicyclo[3.3.1]nonane derivatives 1e and 2, the enlargement of the bicyclic system takes place selectively (compounds 4e and 6). The molecular structure of the product 6, obtained from the reaction between the 1,1′-diborylated ferrocene 2 and two equivalents of 3, was determined by single crystal X-ray analysis (space group P21/c; monoclinic; Z = 4, a = 958.3(2), b = 1610.4(3), c = 2405.3(5) pm and β= 90.33(3)°).

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