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121241-52-9

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121241-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121241-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,2,4 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 121241-52:
(8*1)+(7*2)+(6*1)+(5*2)+(4*4)+(3*1)+(2*5)+(1*2)=69
69 % 10 = 9
So 121241-52-9 is a valid CAS Registry Number.

121241-52-9Relevant articles and documents

Synthesis and Reactivity of Mixed-ligand Isocyanide-Diphosphine Iron(0) Complexes. X-Ray Crystal Structure of cis-(dppe)(CNPh)2(Ph)=C(Me)-C=NPh>>ClO4

Riera, Victor,Ruiz, Javier,Jeannin, Yves,Philoche-Levisalles, Michele

, p. 1591 - 1598 (2007/10/02)

Reduction of mer-I with sodium amalgam in tetrahydrofuran gives the very air-sensitive complexes (2a)-(2c) respectively.Compound (2a) reacts with NH4PF6 to give mer-PF6 (3), which is readily transformed to its fac isomer (4) by heating.Reaction of (2a) with SnPh3Cl yields the novel heterodimetallic cation mer-(1+) (5).Addition of CH3I to toluene solutions of complexes (2a)-(2c) gives the neutral compounds I(L-L)(CNR)(R)=C(Me)-C=NR>> (6a)-(6c) respectively which possess a new chelating ligand.Compound (6a) reacts with phenyl isocyanide in the presence of AgClO4 to give cis-(dppe)(CNPh)2(Ph)=C(Me)-C=NPh>>ClO4 (7) and with carbon monoxide in the presence of TlPF6 to give (dppe)(CO)(CNPH)(Ph)=C(Me)-C=NPh>>(1+).For complex (7), a single-crystal X-ray diffraction study was carried out.The iminic nitrogen in (6a) is easily protonated with HClO4 affording the cationic complex I(dppe)(CNPH)(Ph)=C(Me)-C-NHPh>>ClO4.Complex (2a) reacts with allyl bromide to give mainly the undesired mer-(1+) and a small amount of the neutral complex Br(dppe)(CNPh)(Ph)=C(CH2CHCH2)-C=NPh>>.

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