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94142-02-6

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94142-02-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 94142-02-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,1,4 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 94142-02:
(7*9)+(6*4)+(5*1)+(4*4)+(3*2)+(2*0)+(1*2)=116
116 % 10 = 6
So 94142-02-6 is a valid CAS Registry Number.

94142-02-6Relevant articles and documents

SILICON-DIRECTED BECKMANN FRAGMENTATION

Nishiyama, Hisao,Sakuta, Koji,Osaka, Noriyuki,Arai, Hiroyuki,Matsumoto, Makoto,Itoh, Kenji

, p. 2413 - 2426 (2007/10/02)

The selective fragmentation reactions of β-trimethylsilylketoximes have been proved to proceed effectively with acid catalysts giving the corresponding nitriles.Cyclic silylketoximes gave unsaturated nitriles.The fragmentation in the Beckmann rearrangement is completely controlled and directed by a trimethylsilyl group to lead the regio- and stereo-specific formation of the double bond.The catalytic fragmentation proceeds with the combination of trimethylsilyl ketoxime acetates and trimethylsilyl trifluoromethanesulfonate giving nitriles in high yields.Excellent stereospecificity of the fragmentation based on the stereochemical outcome was discussed.Simple stereo-controlled synthetic approach to some insect pheromones is also described.

ANIONIC 1,4 OC SILYL REARRANGEMENTS

Ruecker, Christoph

, p. 4349 - 4352 (2007/10/02)

γ-Silyloxy-alkyl phenyl thioethers are transformed into γ-silylalcohols by treatment with lithium di-tert-butylbiphenyl.

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