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157810-26-9

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157810-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157810-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,1 and 0 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 157810-26:
(8*1)+(7*5)+(6*7)+(5*8)+(4*1)+(3*0)+(2*2)+(1*6)=139
139 % 10 = 9
So 157810-26-9 is a valid CAS Registry Number.

157810-26-9Relevant articles and documents

Two simple and alternative approaches for the synthesis of anticancer active goniothalamin

Narasimhulu, Manchala,Siva Prasad,Appa, Rama Moorthy,Lakshmidevi, Jangam,Venkateswarlu, Katta

, p. 326 - 337 (2018)

Two alternative and straightforward routes were developed for the construction of (R)-goniothalamin, a natural anticancer agent. The first method starts with (R)-glycidol involving stereoselective (partial) reduction of alkyne and sulfoxide Julia-Lythgoe

Diastereoselective Fluorocyclopropanation of Chiral Allylic Alcohols Using an α-Fluoroiodomethylzinc Carbenoid

Navuluri, Chandrasekhar,Charette, André B.

supporting information, p. 4288 - 4291 (2015/09/15)

Chiral fluorocyclopropyl carbinols were synthesized in high diastereoselectivities via a zinc mediated cyclopropanation reaction, using sec-allylic alcohols as simple building blocks. An enantioselective version of this transformation was achieved through

Synthesis of enantiomerically pure perhydrofuro[3,4-b]pyrans and perhydrofuro[3,4-b]furans

Tiecco, Marcello,Testaferri, Lorenzo,Bagnoli, Luana,Terlizzi, Raffaella,Temperini, Andrea,Marini, Francesca,Santi, Claudio,Scarponi, Catalina

, p. 1949 - 1955 (2007/10/03)

Olefinic diols, prepared from (R)-(+)-2,2-dimethyl-1,3-dioxolane-4- carboxaldehyde via olefination and hydrolysis, were converted into enantiomerically pure hydroxy substituted tetrahydrofuran derivatives by cyclization using N-phenylselenophthalimide and BF3. The PhSe group in the C-4 position of these tetrahydrofurans was then substituted by an allyl group using allyltributylstannane in the presence of AIBN. The selenium promoted cyclizations of the allyl tetrahydrofurans in which the OH and the allyl groups are trans to each other formed the enantiopure perhydrofuro[3,4-b]pyrans, while the cyclization of the allyl tetrahydrofurans in which the OH and the allyl groups are cis gave rise to the perhydrofuro[3,4-b]furans. These bicyclic products were finally deselenenylated with triphenyltin hydride and AIBN.

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