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80283-59-6

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80283-59-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80283-59-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,8 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 80283-59:
(7*8)+(6*0)+(5*2)+(4*8)+(3*3)+(2*5)+(1*9)=126
126 % 10 = 6
So 80283-59-6 is a valid CAS Registry Number.

80283-59-6Relevant articles and documents

Generation of 1,2-oxathiolium ions from (arysulfonyl)- and (arylsulfinyl)allenes in Br?nsted acids. NMR and DFT study of these cations and their reactions

Lozovskiy, Stanislav V.,Ivanov, Alexander Yu.,Khoroshilova, Olesya V.,Vasilyev, Aleksander V.

, p. 2897 - 2906 (2018/12/13)

In strong Br?nsted acids (CF3SO3H, FSO3H, D2SO4), (arysulfonyl)allenes (ArSO2-CR1=C=CR2R3) and (arylsulfinyl)allenes (ArSO-CR1=C=CR2R3) undergo cyclization into the corresponding stable 1,2-oxathiolium ions, which were studied by means of NMR and DFT calculations. Quenching of solutions of these cations with low nucleophilic media, aqueous HCl, leads to their deprotonation with a stereoselective formation of (arysulfonyl)butadienes (for instance, ArSO2-CR1=C-C(Me)=CH2, for R2 = R3 = Me, yields of 87-98%). Reactions of (arysulfonyl)allenes in the system TfOH (0.1 equiv)-HFIP (hexafluoropropan-2-ol) followed by hydrolysis give rise to allyl alcohols (ArSO2-CR1=CH-C(OH)R2R3, yields of 78-99%). Reflux of solutions of (arysulfonyl)allenes in the presence of TfOH (1 equiv) in 1,2-dichlorobenzene leads to the cyclization into thiochromene 1,1-diox-ides in high yields. Under the action of TfOH or AlX3 (X = Cl, Br) followed by hydrolysis of reaction mixtures, (arylsulfinyl)allenes give allyl alcohols (ArSO2-CR1=CH-C(OH)R2R3). Plausible reaction mechanisms have been proposed for all studied reactions.

1,3-Dipolar cycloaddition of nitrile oxides to 1-phenylsulfonyl-1,3-butadienes: Synthesis of 3-(4,5-dihydroisoxazol-5-yl)pyrroles

Hwang, Sung Hee,Kurth, Mark J

, p. 53 - 56 (2007/10/03)

Novel heterocyclic compounds containing the 3-(4,5-dihydroisoxazol-5-yl)pyrrole ring system were synthesized in good yields (66-78%) by regioselective 1,3-dipolar cycloaddition of nitrile oxides to 1-phenylsulfonyl-1,3-dienes followed by Barton-Zard pyrrole annulation.

FACILE ROUTE TO 1-PHOSPHORYL- AND 1-SULFONYL-1,3-DIENES VIA PALLADIUM-CATALYZED ELIMINATION OF ALLYLIC ACETATES

Akermark, Bjoern,Nystroem, Jan-E.,Rein, Tobias,Baeckvall, Jan-E.,Helquist, Paul,Aslanian, Robert

, p. 5719 - 5722 (2007/10/02)

The palladium(II)-catalyzed chloroacetoxylation of 1,3-dienes is employed to prepare 1-chloro-4-acetoxy-2-alkenes which are then transformed into 1-phosphoryl- or 1-sulfonyl-4-acetoxy-2-alkenes respectively.Elimination of acetate is promoted by palladium(

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