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125225-54-9

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125225-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125225-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,2,2 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 125225-54:
(8*1)+(7*2)+(6*5)+(5*2)+(4*2)+(3*5)+(2*5)+(1*4)=99
99 % 10 = 9
So 125225-54-9 is a valid CAS Registry Number.

125225-54-9Relevant articles and documents

Asymmetric dihydroxylation route to a dipeptide isostere of a protease inhibitor: Enantioselective synthesis of the core unit of ritonavir

Ghosh, Arun K.,Shin, Dongwoo,Mathivanan, Packiarajan

, p. 1025 - 1026 (2007/10/03)

An enantioselective synthesis of the dipeptide isostere of ritonavir has been accomplished utilizing Sharpless asymmetric hydroxylation as the key step.

A general approach to γ-lactones via osmium-catalyzed asymmetric dihydroxylation. Synthesis of (-)- and (+)-muricatacin

Wang,Zhang,Sharpless,Sinha,Sinha Bagchi,Keinan

, p. 6407 - 6410 (2007/10/02)

Both enantiomers of hydroxy γ-lactones have been prepared highly enantioselectively (92-99% ee) using either AD-mix-β or AD-mix-α with both β,γ- and γ,δ-unsaturated esters. The method is exemplified by the three-step synthesis of (-) and (+)-muricatacin i

DIASTEREOSELECTIVITY IN THE DIRECTED ALDOL CONDENSATION OF 2-TRIMETHYLSILOXYFURAN WITH ALDEHYDES. A STEREODIVERGENT ROUTE TO THREO AND ERYTHRO δ-HYDROXY-γ-LACTONES

Jefford, Charles W.,Jaggi, Danielle,Boukouvalas, John

, p. 4037 - 4040 (2007/10/02)

Threo and erythro-δ-hydroxy-4a,β-unsaturated γ-lactones are obtained with useful diastereoselection by condensing 2-trimethylsiloxyfuran and aldehydes by variying the reaction conditions.A stereomechanistic rationale is presented together with a practical two-step synthesis of the threo and erythro 5-hydroxy-4-decanolides (L-factors).

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