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127053-50-3

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127053-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127053-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,0,5 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127053-50:
(8*1)+(7*2)+(6*7)+(5*0)+(4*5)+(3*3)+(2*5)+(1*0)=103
103 % 10 = 3
So 127053-50-3 is a valid CAS Registry Number.

127053-50-3Downstream Products

127053-50-3Relevant articles and documents

DBU-Catalyzed Ring-Opening and Retro-Claisen Fragmentation of Dihydropyranones

Axelsson, Anton,Hammarvid, Emmelie,Rahm, Martin,Sundén, Henrik

, p. 5436 - 5444 (2020/08/26)

We present a general protocol for the formal Michael addition of acetone to α,β-unsaturated esters and amides, a transformation difficult to perform using current methods. The protocol comprises of an amidine catalyzed relay ring-opening and fragmentation

Highly effective vinylogous Mukaiyama-Michael reaction catalyzed by silyl methide species generated from 1,1,3,3-tetrakis(trifluoromethanesulfonyl)propane

Takahashi, Arata,Yanai, Hikaru,Zhang, Min,Sonoda, Takaaki,Mishima, Masaaki,Taguchi, Takeo

supporting information; experimental part, p. 1259 - 1265 (2010/04/29)

(Chemical Equation Presented) Silyl methide species in situ generated from 1,1,3,3-tetrakis(trifluoromethanesulfonyl)propane (Tf2CHCH 2CHTf2) performed as an excellent acid catalyst for the vinylogousMukaiyama-Michael reaction of α,β-unsaturated ketones with 2-silyloxyfurans. Notably, the required loading of Tf2CHCH 2CHTf2 to obtain the 1,4-adducts in reasonable yield was significantly low (from 0.05 to 1.0 mol%). This carbon acid-mediatedVMMreaction provides a powerful synthetic methodology to construct highly substituted γ-butenolide structure. 2010 American Chemical Society.

NOVEL REFORMATSKY REACTIONS OF 3-ARYLMETHYLENE-4,5-DIHYDRO-2(3H)-FURANONES AND 4-ARYLMETHYLENE-3-METHYL-5(4H)-ISOXAZOLONES

Batra, Sanjay,De, Dibyendu,Seth, Manju,Bhaduri, Amiya Prasad

, p. 1228 - 1238 (2007/10/02)

New avenues for enlarging the scope of Reformatsky reaction have been explored by reacting the title compounds with α-halogenoalkanoates in the presence of zinc.

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