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627099-29-0

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627099-29-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 627099-29-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,7,0,9 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 627099-29:
(8*6)+(7*2)+(6*7)+(5*0)+(4*9)+(3*9)+(2*2)+(1*9)=180
180 % 10 = 0
So 627099-29-0 is a valid CAS Registry Number.

627099-29-0Upstream product

627099-29-0Downstream Products

627099-29-0Relevant articles and documents

1-Sila-[1]ferrocenophanes, structure and reactivity Ring-opening by reactions with boron halides

Wrackmeyer, Bernd,Ayazi, Anahid,Milius, Wolfgang,Herberhold, Max

, p. 180 - 187 (2007/10/03)

1-Sila-[1]ferrocenophanes (1-5) were studied with respect to their NMR spectroscopic parameters, in particular the coupling constants involving the carbon atom C(1) [1 J (13 C(1),13C(2,5)), 1 J (29Si, 13C(1)) and 1 J (57Fe,13C)]. The disiloxane 6, containing two 1-sila-[1]ferrocenophane units, possesses a linear Si-O-Si group, as shown by X-ray structural analysis, being different from the bent structure of the same compound that has been reported in the literature. Ring-opening reactions of the complexes 2-5 with some boron halides (PhBCl2, BCl3, BBr3 and BI3) gave the ferrocene derivatives 7-12, in which the cyclopentadienyl rings bear silyl and boryl groups, respectively. Two of these complexes (9a and 10) were treated with lithium diethylamide in a 1:1 molar ratio, and in both cases selective substitution at the boron atom was observed (13, 14). All products were characterised by their 1H-, 11B-, 13C- and 29Si-NMR data.

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