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181515-32-2

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181515-32-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181515-32-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,5,1 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 181515-32:
(8*1)+(7*8)+(6*1)+(5*5)+(4*1)+(3*5)+(2*3)+(1*2)=122
122 % 10 = 2
So 181515-32-2 is a valid CAS Registry Number.

181515-32-2Downstream Products

181515-32-2Relevant articles and documents

Phosphinoalkylnitriles: Synthesis and coordination behaviour at palladium centres

Pitter, Stephan,Dinjus, Eckhard,Jung, Beate,Go?rls, Helmar

, p. 934 - 946 (2007/10/03)

Phosphinoalkylnitriles R2P-(CH2)n-CN {R = isopropyl (ipr), phenyl (ph), cyclohexyl (chex), n = 3, 6, 10} have been prepared starting from the corresponding secondary phosphines in an easy three step synthesis. All new compounds were characterized by their 1H-, 13C and 31P NMR data. Some of these new P, N ligands were used to prepare complexes [{R2P-(CH2)n-CN}2PdCl2] which were also identified by their NMR data. In addition the crystal structures of three derivatives, [{ipr2P-(CH2)3-CN} 2PdCl2] 7a, [{ph2P-(CH2)3-CN}2PdCl2] 7b and [{ph2P-(CH2)6-CN}2PdCl2] 8b were determined by X-ray analysis. The coordination mode of the phosphinoalkylnitriles in these complexes was found to be P-bonded resulting in a trans configuration. Palladium catalysts with 5a as ligund show high activies in the co-oligomerization of butadiene and carbon dioxide. The δ-lactone 11a is formed under very mild conditions.

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