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319491-92-4

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319491-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 319491-92-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,9,4,9 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 319491-92:
(8*3)+(7*1)+(6*9)+(5*4)+(4*9)+(3*1)+(2*9)+(1*2)=164
164 % 10 = 4
So 319491-92-4 is a valid CAS Registry Number.

319491-92-4Relevant articles and documents

Synthesis of Complex Stereoheptads en Route to Daphnane Diterpene Orthoesters

Nguyen, Long V.,Beeler, Aaron B.

, p. 5177 - 5180 (2018/09/13)

Tricyclic cores of the daphnane diterpene orthoesters (DDOs) are synthesized in 10 steps from readily available materials. Key to their assembly is the development of a stereocontrolled p-quinol functionalization sequence which enables rapid access to DDO C-ring stereopolyads from simple precursors. Problems encountered in stereo- and regioselectivity are highlighted and solved by exact changes in choreography, although it is shown that the undesired stereochemical outcomes also proceed with high selectivity.

Chiral acetals in organic synthesis: Regioselective synthesis of 2-and 3-hydroxy acetals from 2,3-olefinic acetals. Reinvestigation and further applications

Vankar, Yashwant D.,Reddy, M. Venkatram,Chaudhuri, Narayan C.

, p. 11057 - 11078 (2007/10/02)

Achiral as well as chiral 2,3-olefinic acetals are converted into 2- and 3- hydroxy acetals via LAH reduction of the corresponding epoxides and via bromohydrins followed by TBTH reductions respectively. Synthesis of 1,3-diones is described. Compounds from chiral systems are further utilized for asymmetric synthesis.

Synthesis and antimicrobial activity of a carbocyclic puromycin analog. 6-Dimethylamino-9-(R(2R-hydroxy-3R-(p-methoxyphenyl-L alanylamino))-cyclopentyl)purine.

Daluge,Vince

, p. 171 - 177 (2007/10/09)

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