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127238-15-7

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127238-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127238-15-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,2,3 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127238-15:
(8*1)+(7*2)+(6*7)+(5*2)+(4*3)+(3*8)+(2*1)+(1*5)=117
117 % 10 = 7
So 127238-15-7 is a valid CAS Registry Number.

127238-15-7Relevant articles and documents

Stereoselective Generation and Aldol Reaction of Tetrafluoropropanamide Boron Enolates Leading to threo-2-Fluoro-2-trifluoromethyl-3-hydroxy Alkanamides

Ishihara, Takashi,Kuroboshi, Manabu,Yamaguchi, Koichi

, p. 211 - 214 (2007/10/02)

Treatment of N,N-dialkyl-2-hydryltetrafluoropropanamide, readily available from hexafluoropropene and a secondary amine, with dibutylboryl triflate and ethyldiisopropylamine gave isomerically pure tetrafluoropropanamide boron enolate, which was allowed to react with various aldehydes at -10 deg C to afford the corresponding threo-2-fluoro-2-trifluoromethyl-3-hydroxy alkanamides in good yields.

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