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93711-21-8

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93711-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93711-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,7,1 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 93711-21:
(7*9)+(6*3)+(5*7)+(4*1)+(3*1)+(2*2)+(1*1)=128
128 % 10 = 8
So 93711-21-8 is a valid CAS Registry Number.

93711-21-8Downstream Products

93711-21-8Relevant articles and documents

DIANIONS OF N-MONOSUBSTITUTED-3-(PHENYLSULFONYL)PROPANAMIDES. CONVENIENT REAGENTS FOR THE SYNTHESIS OF 5-ALKYL-2(5H)-FURANONES

Tanaka, Kazuhiko,Wakita, Hisanori,Yoda, Hidemi,Kaji, Aritsune

, p. 1359 - 1362 (1984)

Treatment of N-phenyl-3-(phenylsulfonyl)propanamide with 2 equiv. of butyllithium at -78 deg C afforded the dianion.Aldehydes and ketones upon treatment with the dianion provided stable γ-hydroxy amides, which were converted in good yields to 5-alkyl-2(5H)-furanones.Optically active (R)- and (S)-5-octyl-2(5H)-furanones, and (R)- and (S)-5-tridecyl-2(5H)-furanones were prepared from aldehydes and the dianions, derived from chiral N-monosubstituted-3-(phenylsulfonyl)propanamides.

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