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72806-73-6

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72806-73-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72806-73-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,0 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72806-73:
(7*7)+(6*2)+(5*8)+(4*0)+(3*6)+(2*7)+(1*3)=136
136 % 10 = 6
So 72806-73-6 is a valid CAS Registry Number.

72806-73-6Downstream Products

72806-73-6Relevant articles and documents

Spiroaziridines from 4-substituted α-ylidene-γ-butyro lactones

Gasperi, Tecla,Loreto, M. Antonietta,Migliorini, Antonella,Tardella, Paolo A.

, p. 1447 - 1454 (2007/10/03)

4-Substituted α-ylidene-γ-butyrolactones produce N-ethoxycarbonyl-spiroaziridino γ-lactone diastereomers on treatment with NsONHCO2Et and CaO. A good stereofacial preference is observed when the ring substituent is a phenyl group. These product

A two steps synthesis of γ-substituted and γ,γ-disubstituted α-(alkylmethylene)-γ-butyrolactones

Ballini, Roberto,Marcantoni, Enrico,Perella, Silvia

, p. 2954 - 2957 (2007/10/03)

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POLARIZED KETENE DITHIOACETALS 63. STEREOSELECTIVE SYNTHESIS OF Α-YLIDENE-Γ-BUTYROLACTONES

Datta, Apurba,Ila, Hiriyakkanavar,Junjappa, Hiriyakkanavar

, p. 5367 - 5374 (2007/10/02)

A facile method for highly stereoselective synthesis of α-arylidene (4a-d, 4f-h and 4j) and α-ethylidene (4e,4i)-γ-butyrolactones has been developed by acid catalyzed lactonization of the corresponding α-ylidene-γ,δ-unsaturated esters 3a-j.The required es

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