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30608-90-3

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30608-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 30608-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,6,0 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 30608-90:
(7*3)+(6*0)+(5*6)+(4*0)+(3*8)+(2*9)+(1*0)=93
93 % 10 = 3
So 30608-90-3 is a valid CAS Registry Number.

30608-90-3Relevant articles and documents

Stereoselective Syntheses of Alkohols, XXV. - Generation of Enol Borates and Their Addition to Aldehydes

Hoffmann, Reinhard W.,Ditrich, Klaus,Froech, Sybille

, p. 977 - 986 (2007/10/02)

Ketone-derived enol borates, especially those having a 4,4,5,5-tetramethyl-1,3,2-dioxaborolane unit, are stable compounds,which have been prepared either by borylation of lithium enolates or by oxidation of vinylboronates.These E- or Z-enol borates add to aldehydes in a stereoconvergent reaction leading to syn-aldols.Aldehyde-derived enol borates have a high tendency towards polymerization.Their in-situ addition to aldehydes generates 4-alkoxy-1,3,2-dioxaborinanes, which are internally protected aldols.

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