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17876-91-4

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17876-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17876-91-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,7 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17876-91:
(7*1)+(6*7)+(5*8)+(4*7)+(3*6)+(2*9)+(1*1)=154
154 % 10 = 4
So 17876-91-4 is a valid CAS Registry Number.

17876-91-4Relevant articles and documents

The Use of Methoxy(phenyldimethylsilyl)methyl-lithium as a Formyl Anion Equivalent

Ager, David J.,Gano, James E.,Parekh, Shyamal I.

, p. 1256 - 1258 (2007/10/02)

Methoxy(phenyldimethylsilyl)methyl-lithium provides a new formyl anion equivalent which affords α-hydroxyaldehydes via an oxidative desilylation procedure.

Synclinal and Anticlinal Isomers of the Iron Methoxycarbene Complex 5-C5Me5)Fe(CO)2(=CHOMe)>(1+); Access to Functional Compounds

Guerchais, Veronigue,Lapinte, Claude

, p. 894 - 896 (2007/10/02)

The methoxymethyl complex (η5-C5Me5)Fe(CO)2(CH2OMe) (2) undergoes hydride abstraction with Ph3C(1+)PF6(1-) at -80 deg C and affords the secondary methoxycarbene complex 5-C5Me5)Fe(CO)2(=CHOMe)>(1+)PF6(1-) (1) as a mixture of two geometric isomers of which the syn form isomerizes upon warming; complex (1) adds PPh3 yielding quantitatively 5-C5Me5)Fe(CO)2(CHOMePPh3)>(1+)PF6(1-) (3), and converts Me2PhSiH into Me2PhSiCH2OMe (4), giving in the presence of the appropriate alkenes, the alkene complexes 5-C5Me5)Fe(CO)2(CH2=CHR)>(1+)PF6(1-) (5).

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