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72035-56-4

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72035-56-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72035-56-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,3 and 5 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 72035-56:
(7*7)+(6*2)+(5*0)+(4*3)+(3*5)+(2*5)+(1*6)=104
104 % 10 = 4
So 72035-56-4 is a valid CAS Registry Number.

72035-56-4Relevant articles and documents

One-pot synthesis of 3-substituted-3-hydroxyindolin-2-ones: three component coupling ofN-protected isatin, aryne precursor and 1,3-cyclodione under metal-free conditions

Chutia, Kangkana,Das, Babulal,Gogoi, Pranjal,Hazarika, Hemanta

, p. 86 - 96 (2021/12/31)

An aryne-based synthetic protocol has been developed for the synthesis of 3-substituted-3-hydroxy-indolin-2-ones. A wide variety of 3-hydroxyindolin-2-ones were synthesized in good yields under metal-free conditionsviathree component coupling ofN-protected isatin, aryne precursor, and 1,3-cyclodione. One of our synthesized compounds has been unambiguously confirmed by single crystal XRD analysis. Further, treating the synthesized 3-hydroxyindolin-2-one derivatives with an inorganic base at high temperature leads to an interestingo-arylated product of 1,3-cyclohexandione.

Copper-catalyzed regio- and stereoselective O-arylation of enolates

Xu, Ze-Feng,Cai, Chen-Xin,Jiang, Min,Liu, Jin-Tao

supporting information, p. 3436 - 3439 (2014/07/21)

Copper-catalyzed O-arylation of enolates with diaryliodonium salts as arylating reagents was realized successfully. As important building blocks, β-aryloxy carbonyl compounds were obtained in up to 98% yield under mild conditions, and complete control of

Reduction of Vinylogous Thioesters with Lithium Aluminum Hydride. I. Reduction of β-Phenylthio-α,β-unsaturated Cyclic Ketones

Matoba, Katsuhide,Tokizawa, Minoru,Morita, Takashi,Yamazaki, Takao

, p. 368 - 372 (2007/10/02)

5,5,Dimethyl-3-phenoxy-2-cyclohexenone (Ib) was reduced with lithium aluminum hydride (LAH) to give the 1,2-addition product (IIIa). 2-Methyl-3-phenoxy-2-cyclopentetnone (IIa) gave a mixture of the allyl alcohol (IVa) and 1,2-addition product (IVb).On the

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