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79606-79-4

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79606-79-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79606-79-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,6,0 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79606-79:
(7*7)+(6*9)+(5*6)+(4*0)+(3*6)+(2*7)+(1*9)=174
174 % 10 = 4
So 79606-79-4 is a valid CAS Registry Number.

79606-79-4Relevant articles and documents

A combined DFT and NMR investigation of the zinc organometallic intermediate proposed in the syn-selective tandem chain extension-aldol reaction of β-keto esters

Aiken, Karelle S.,Eger, Wilhelm A.,Williams, Craig M.,Spencer, Carley M.,Zercher, Charles K.

experimental part, p. 5942 - 5955 (2012/10/08)

The tandem chain extension-aldol (TCA) reaction of β-keto esters provides an α-substituted γ-keto ester with an average syn:anti selectivity of 10:1. It is proposed that the reaction proceeds via a carbon-zinc bound organometallic intermediate potentially bearing mechanistic similarity to the Reformatsky reaction. Evidence, derived from control Reformatsky reactions and a study of the structure of the TCA intermediate utilizing DFT methods and NMR spectroscopy, suggests the γ-keto group of the TCA intermediate plays a significant role in diastereoselectivity observed in this reaction. Such coordination effects have design implications for future zinc mediated reactions.

Microwave-assisted Paal-Knorr reaction - Three-step regiocontrolled synthesis of polysubstituted furans, pyrroles and thiophenes

Minetto, Giacomo,Raveglia, Luca F.,Sega, Alessandro,Taddei, Maurizio

, p. 5277 - 5288 (2007/10/03)

An efficient and highly versatile synthesis of furans, pyrroles and thiophenes is described. Starting from commercially available or easily prepared β-keto esters, functional homologation provides differently substituted 1,4-diketones that can be transfor

Tandem chain extension-aldol reaction: syn selectivity with a zinc enolate.

Lai,Zercher,Jasinski,Reid,Staples

, p. 4169 - 4171 (2007/10/03)

A tandem chain extension-aldol reaction was developed in which beta-keto esters are transformed to alpha-substituted-gamma-keto esters in an efficient zinc-mediated, one-pot reaction. The diastereoselectivity of the reaction ranged from good to excellent

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