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79727-49-4

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79727-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79727-49-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,7,2 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79727-49:
(7*7)+(6*9)+(5*7)+(4*2)+(3*7)+(2*4)+(1*9)=184
184 % 10 = 4
So 79727-49-4 is a valid CAS Registry Number.

79727-49-4Downstream Products

79727-49-4Relevant articles and documents

The Reactions of Furfuryl Alcohols with Maleic Anhydride

Pelter, Andrew,Singaram, Bakthan

, p. 1383 - 1386 (2007/10/02)

The reactions of furfuryl alcohols (1a) and (1b) with maleic anhydride were investigated and, for the first time, conditions defined for the production of intramolecular Diels-Alder adducts.Under basic conditions the adducts (3a,b) yield phthalides in high yield.Furfuryl alcohols (1c) and (8a) afford normal intermolecular Diels-Alder adducts with maleic anhydride.

A SYNTHETIC METHOD FOR NOVEL 1,2,3-TRISUBSTITUTED CYCLOPENTANE DERIVATIVES, 1-HYDROXYMETHYL-3-METHOXY-2-OXABICYCLOHEPTANE-7-CARBOXYLIC LACTONES

Imagawa, Takeshi,Nakagawa, Tsunefuni,Matsuura, Kazuyuki,Akiyama, Tetsuo,Kawanisi, Mituyosi

, p. 903 - 904 (2007/10/02)

The reaction of furfuryl alcohols with maleic anhydride leads to tricyclic lactonecarboxylic acids through the sequence of esterification and intramolecular Diels-Alder reaction.Anodic oxidative decarboxylation of the hydrogenated products in MeOH affords 1,2,3-trisubstituted cyclopentane derivatives, viz. 1-hydroxymethyl-3-methoxy-2-oxabicycloheptane-7-syn-carboxylic lactones, potential intermediates for synthesis of iridoids.

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