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439098-07-4

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439098-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 439098-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,9,0,9 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 439098-07:
(8*4)+(7*3)+(6*9)+(5*0)+(4*9)+(3*8)+(2*0)+(1*7)=174
174 % 10 = 4
So 439098-07-4 is a valid CAS Registry Number.

439098-07-4Downstream Products

439098-07-4Relevant articles and documents

Addition of chiral enolates to N-alkyl-3-acylpyridinium salts. Total synthesis of (+)-16-epivinoxine and (-)-vinoxine

Bennasar, M.-Llusa,Zulaica, Ester,Alonso, Yolanda,Vidal, Bernat,Vazquez, Jesus T.,Bosch, Joan

, p. 95 - 106 (2007/10/03)

Chiral enolates of indolylacetyl derivatives 6a-f undergo addition to pyridinium salt 7 with complete trans-selectivity and varied diastereofacial selectivities to give, after acid-induced cyclization of the intermediate 1,4-dihydropyridines, the vinoxine-related tetracycles 8a-f. Starting from (S)-prolinol indolylacetamide 6e, subsequent elaboration of the ethylidene substituent from tetracycle 8e and removal of the chiral auxiliary has resulted in a straightforward synthesis of (+)-16-epivinoxine and (-)-vinoxine.

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