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1072145-53-9

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1072145-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1072145-53-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,2,1,4 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1072145-53:
(9*1)+(8*0)+(7*7)+(6*2)+(5*1)+(4*4)+(3*5)+(2*5)+(1*3)=119
119 % 10 = 9
So 1072145-53-9 is a valid CAS Registry Number.

1072145-53-9Relevant articles and documents

Formal synthesis of soybean phytoalexin glyceollin i

Kohno, Yuta,Koso, Masatsugu,Kuse, Masaki,Takikawa, Hirosato

, p. 1826 - 1828 (2014/03/21)

Glyceollins are well-known phytoalexins isolated from soybean (Glycine max). An efficient three-step synthesis was developed for the preparation of the key intermediate in Khupse's glyceollin I synthesis. Claisen rearrangement-cyclization cascade reaction

Multigram synthesis of glyceollin i

Luniwal, Amarjit,Malik, Neha,Erhardt, Paul,Khupse, Rahul,Reese, Michael,Liu, Jidong,El-Dakdouki, Mohammad,Fang, Lei

, p. 1149 - 1162 (2012/01/05)

Scaled-up procedures and preparation of glyceollin I in multigram quantities are described. The synthesis features construction of a cis-fused ring system in high enantiomeric excess after Sharpless asymmetric dihydroxylation of a key intermediate that is initially produced by an intramolecular Wittig reaction to afford the requisite alkene while simultaneously forming the first ring. The overall yield is 12% after 11 steps.

Total syntheses of racemic, natural (-) and unnatural (+) glyceollin I

Khupse, Rahul S.,Erhardt, Paul W.

supporting information; experimental part, p. 5007 - 5010 (2009/05/31)

(Chemical Equation Presented) The first total syntheses of racemic glyceollin I and its enantiomers are described. A Wittig approach was utilized as an entry to the appropriately substituted isoflav-3-ene so that an osmium tetroxide mediated asymmetric dihydroxylation could be deployed for stereospecific Introduction of the 6a-hydroxy group. While using triphenylphosphine hydrobromide, a novel method was found for gently removing MOM from protected phenolic hydroxyl groups present within sensitive systems.

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