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57432-86-7

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57432-86-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57432-86-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,3 and 2 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 57432-86:
(7*5)+(6*7)+(5*4)+(4*3)+(3*2)+(2*8)+(1*6)=137
137 % 10 = 7
So 57432-86-7 is a valid CAS Registry Number.

57432-86-7Relevant articles and documents

Baker's yeast mediated biohydrogenation of sulphur-functionalised methacrolein derivatives. Stereochemical aspects of the reaction and preparation of the two enantiomers of useful C4 bifunctional chiral synthons

Serra, Stefano,Fuganti, Claudio

, p. 2191 - 2196 (2007/10/03)

The baker's yeast mediated reduction of sulphur-functionalised methacroleins 11, 15 and 18 leads to the preparation of the bifunctional methyl branched C4 chiral synthons 6 and 7. The stereochemical aspects of the biohydrogenation have been investigated. Both the oxidation state of sulphur and the isomeric position of the double bond affected the enantioselectivity of the reduction strongly, thus, offering access to the two enantiomeric forms of 6 and 7.

SYNTHESIS OF FUNCTIONALIZED ISOPRENES INVOLVING A TERMINAL ALKOXY GROUP AND THEIR HIGHLY REGIOSELECTIVE DIELS-ALDER REACTION

Mandai, Tadakatsu,Osaka, Kazuhito,Wada, Tadakazu,Kawada, Mikio,Otera, Junzo

, p. 1171 - 1174 (2007/10/02)

Functionalized isoprenes involving a terminal alkoxy group are newly synthesized, and a highly regioselective Diels-Alder reaction of these dienes with various unsymmetric dienophiles is described.

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