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138713-63-0

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138713-63-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138713-63-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,1 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138713-63:
(8*1)+(7*3)+(6*8)+(5*7)+(4*1)+(3*3)+(2*6)+(1*3)=140
140 % 10 = 0
So 138713-63-0 is a valid CAS Registry Number.

138713-63-0Downstream Products

138713-63-0Relevant articles and documents

Asymmetric total synthesis of (-)-lupinine and (+)-epilupinine via α-sulfinyl ketimine. Stereocontrolled reduction of β-sulfinyl enamines

Hua,Miao,Bravo,Takemoto

, p. 970 - 974 (2007/10/02)

(-)-Lupinine and (+)-epilupinine [(1R,9aR)- and (1S,9aR)-octahydro-1-hydroxymethyl-2H-quinolizine] were synthesized from (+)-2,3,4,5-tetrahydro-6-[(R)-(4-methylphenyl)sulfinylmethyl]pyridine (4) in five steps. The intermediate, 3,4,6,7,8,9-hexahydro-1-[(R)-(4-methylphenyl)sulfinyl]-2H-quinolizine (7), was stereoselectively reduced with cerium(III) chloride heptahydrate and sodium borohydride to give predominantly C-9a-R isomers, (9aR)-octahydro-1-[(R)-(4-methylphenyl)sulfinyl]-2H-quinolizines.

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