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127717-10-6

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127717-10-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127717-10-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,7,1 and 7 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127717-10:
(8*1)+(7*2)+(6*7)+(5*7)+(4*1)+(3*7)+(2*1)+(1*0)=126
126 % 10 = 6
So 127717-10-6 is a valid CAS Registry Number.

127717-10-6Relevant articles and documents

Equatorial preference in the GaCl3-promoted ethenylation of cyclic ketones

Arisawa,Miyagawa,Yamaguchi

, p. 138 - 145 (2002)

Silyl enol ethers derived from substituted cyclohexanones are ethenylated with trimethylsilylethyne in the presence of GaCl3. Carbon-carbon bond formation was completed in less than 5 min at room temperature and protodegallation of the organogallium intermediate formed with 6 M sulfuric acid gave β-enones. The reactions exhibit a bias for the equatorial C-C bond formation, which contrasts the axial stereochemistry of enolate alkylation. The origin of this stereoselectivity is discussed.

STEREOSELECTIVE CYCLIZATION OF (E)- AND (Z)-5,6-DIMETHYL-8-TRIMETHYLSILYL-6-OCTENALS

Asao, Kazuhiko,Iio, Hideo,Tokoroyama, Takashi

, p. 6397 - 6400 (2007/10/02)

The diastereoselectivities in the acid-mediated cyclization of (E)- and (Z)-5,6-dimethyl-8-trimethylsilyl-6-octenals, both stereoselectively synthesized, were investigated.Excellent preference for the formation of cis-dimethylcyclohexanols was realized, s

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