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849596-42-5

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849596-42-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 849596-42-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,9,5,9 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 849596-42:
(8*8)+(7*4)+(6*9)+(5*5)+(4*9)+(3*6)+(2*4)+(1*2)=235
235 % 10 = 5
So 849596-42-5 is a valid CAS Registry Number.

849596-42-5Relevant articles and documents

Synthesis of enantiopure cyclitols from (±)-3-bromocyclohexene mediated by intramolecular oxyselenenylation employing (S,S)-hydrobenzoin and (S)-mandelic acid as chiral sources

Lee, Yong Joo,Lee, Kyunghoon,Jung, Sea Ill,Jeon, Heung Bae,Kim, Kwan Soo

, p. 1987 - 2001 (2007/10/03)

Reaction of 3-bromocyclohexene with (S,S)-hydrobenzoin and (S)-mandelic acid and subsequent intramolecular oxyselenenylation of the resulting allylic ethers followed by oxidation-elimination afforded the valuable cis-fused bicyclic olefins, (1S,3S,4S,6R)-3,4-diphenylbicyclo[4,4,0]-2,5-dioxa-7-decene and (1S,3S,4R)-3-phenyl-4a,7,8,8a-tetrahydro-benzo[1,4]dioxan-2-one, respectively. Further stereoselective transformation of these cis-fused bicyclic olefins afforded the enantiopure cyclohexitols, muco-quercitol, D-chiro-inocitol and allo-inocitol.

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