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110658-45-2

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110658-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 110658-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,6,5 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 110658-45:
(8*1)+(7*1)+(6*0)+(5*6)+(4*5)+(3*8)+(2*4)+(1*5)=102
102 % 10 = 2
So 110658-45-2 is a valid CAS Registry Number.

110658-45-2Relevant articles and documents

Synthesis of β-hydroxywybutines, the most probable alternatives for the hypermodified base of rat liver phenylalanine transfer ribonucleic acid

Itaya, Taisuke,Watanabe, Nobuhide,Iida, Takehiko,Kanai, Tae,Mizutani, Akemi

, p. 6419 - 6430 (1995)

Deoxygenation of the 1,2-glycol (±)-5 was achieved at the position adjacent to the heterocycle through the cyclic carbonate (±)-14, providing the monohydroxy compound 6. This new method of regioselective deoxygenation was employed for the first synthesis

Cyclocondensation of oxalyl chloride with 1,2-glycols

Iida,Itaya

, p. 10511 - 10530 (2007/10/02)

Oxalyl chloride reacts with a wide range of acyclic 1,2-glycols 1 in the presence of triethylamine to produce 1,3-dioxolan-2-ones 3 together with 1,4-dioxane-2,3-diones 2. Ethylene glycol (1d), monosubstituted ethylene glycols 1e, j-l, and erythro-1,2-disubstituted ethylene glycols 1f, m, o provide the cyclic carbonates 3 as the minor products, while the threo-compounds 1g, i, n, p, q and pinacol (1h) afford 3 as the main products. The formation of 3 may be rationalized in terms of stereoelectronically controlled cleavage of the conjugate base 17- of the tetrahedral intermediates. The rate of the conformational change of 17- into 18- and the equilibrium constant between these conformers are proposed to be the major factors affecting the reaction pattern.

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