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[(calix[4]OMe)Ta(p-MeC6H4)2] is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

221279-66-9

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221279-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221279-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,2,7 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 221279-66:
(8*2)+(7*2)+(6*1)+(5*2)+(4*7)+(3*9)+(2*6)+(1*6)=119
119 % 10 = 9
So 221279-66-9 is a valid CAS Registry Number.

221279-66-9Downstream Products

221279-66-9Relevant academic research and scientific papers

Metal-carbon and carbon-oxygen related reactivity in tantalum p-tert-butylcalix[4]arene complexes undergoing organic functionalization

Castellano, Barbara,Zanotti-Gerosa, Antonio,Solari, Euro,Floriani, Carlo,Chiesi-Villa, Angiola,Rizzoli, Corrado

, p. 4894 - 4896 (1996)

[(Calix[4]OMe)TaCl2] (2), formed from [calix-[4](OMe)2] (1) and TaCl5 via a demethylation reaction, undergoes exhaustive alkylation to [(calix[4]OMe)TaR2] (3-5), which give photochemically or thermally induced concerted dealkylation at the metal and at the methoxy group, to give [calix[4]TaR] (6-8). Double migration of alkyl groups has been observed in the reaction of 3-5 with CO and ButNC to form the corresponding η2-ketones [(calix[4]OMe)Ta(η2-COR2)] (9-11) and η2-imines [(calix[4]OMe)Ta{η2-N(But)CR2}] (12-14).

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