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66502-11-2

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66502-11-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66502-11-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,5,0 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 66502-11:
(7*6)+(6*6)+(5*5)+(4*0)+(3*2)+(2*1)+(1*1)=112
112 % 10 = 2
So 66502-11-2 is a valid CAS Registry Number.

66502-11-2Relevant articles and documents

Highly chemoselective α-diazo carbonyl insertion reactions into N-H and S-H bonds catalysed by [RuCl(η5-C5H5)(PPh3)2]

Del Zotto, Alessandro,Baratta, Walter,Rigo, Pierluigi

, p. 3079 - 3082 (2007/10/03)

Complex [RuCl(η5-C5H5)(PPh3)2], in chloroform at 60 deg C, catalyses the chemoselective insertion of α-diazo carbonyl compounds into N-H and S-H bonds to afford α-keto-amines and α-keto-thioethers.

SELECTIVE PREPARATION AND CYCLIZATION OF 2-(2-HYDROXYPHENYL)-2-(ISOPROPYLTHIO)ETHANOLS. NEW SYNTHESIS OF 1-BENZOFURANS

Ota, Tomomi,Hasegawa, Shun,Inoue, Seiichi,Sato, Kikumasa

, p. 3029 - 3036 (2007/10/02)

Reaction of phenols with 2-(isopropylthio)ethyl acetate activated by sulphuryl chloride afforded 2-phenols regioselectively, via sigmatropic rearrangement of phenoxysulphonium ylides.The ortho-alkylated phenols thus obtained have been cyclized with conc. hydrochloric acid in 2-methoxyethanol to 1-benzofurans. 2-Methyl- and 2-phenyl-1-benzofurans have been prepared similarly.

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