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(±)-ethyl 2-azido-2-(4-methoxyphenyl)acetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77629-84-6

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77629-84-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77629-84-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,2 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77629-84:
(7*7)+(6*7)+(5*6)+(4*2)+(3*9)+(2*8)+(1*4)=176
176 % 10 = 6
So 77629-84-6 is a valid CAS Registry Number.

77629-84-6Relevant academic research and scientific papers

Pd-catalyzed divergent C(sp2)-H Activation/Cycloimidoylation of 2-Isocyano-2,3-diarylpropanoates

Tang, Shi,Yang, Sheng-Wen,Sun, Hongwei,Zhou, Yali,Li, Juan,Zhu, Qiang

, p. 1832 - 1836 (2018)

A Pd-catalyzed site-selective C(sp2)-H activation/cycloimidoylation of 2-isocyano-2,3-diarylpropanoates to construct diverse cyclic imine products has been developed. Six-membered 3,4-dihydroisoquinolines containing a C3 quaternary carbon cente

Boron-Catalyzed Azide Insertion of α-Aryl α-Diazoesters

San, Htet Htet,Wang, Chun-Ying,Zeng, Hai-Peng,Fu, Shi-Tao,Tang, Xiang-Ying,Jiang, Min

, p. 4478 - 4485 (2019/05/01)

A challenging metal-free azide insertion of α-aryl α-diazoesters in the presence of B(C6F5)3 (5 mol %) was developed for the first time. The reaction features an easy operation, wide substrate scope, and mild conditions an

Synthesis ofα-azido ketones and esters using recyclable hypervalent iodine reagent

Telvekar, Vikas N.,Patile, Hemlata V.

experimental part, p. 131 - 135 (2011/02/27)

A simple and mild method for the preparation of αazido ketones and esters using hypervalent iodine reagent, 4,4'-bis-(dichloroiodo)-biphenyl, and sodium azide in 1,4-dioxane is discussed. Advantages of this system are easy workup, recyclable reagent, and

Diastereochemical diversity of imidazoline scaffolds via substrate controlled TMSCI mediated cycloaddition of azlactones

Sharma, Vasudha,Tepe, Jetze J.

, p. 5091 - 5094 (2007/10/03)

(Chemical Equation Presented) We report herein a trimethylsilyl chloride mediated substrate controlled 1,3-dipolar cycloaddition for the diastereoselective synthesis of either syn- or anti-imidazolines. This method provides scaffolds with four points of diversity and control over two stereocenters.

The Effects of α-Substituents on the Kinetic and Thermodynamic Stability of 4-Methoxybenzyl Carbocations: Carbocation Lifetimes That Are Independent of Their Thermodynamic Stability

Amyes, Tina L.,Stevens, Ishmael W.,Richard, John P.

, p. 6057 - 6066 (2007/10/02)

The following new rate constants for reaction of α-substituted 4-methoxybenzyl carbocations, 4-MeOC6H4CR1(R2)(1+), with a solvent of 50:50 (v/v) trifluoroethanol/water at 25 deg C and ionic strength 0.50 (NaClO4) are reported: 4-MeOC6H4CH(OMe)(1+), Ks = 2.2E7 s-1; 4-MeOC6H4CH(N3)(1+), ks = 3.3E5 s-1; 4-MeOC6H4C(CH3)2(1+), ks = 1.3E7 s-1; 4-MeOC6H4CH(CO2Et)(1+), ks = 1.4E7 s-1; 4-MeOC6H4CCH3(CF3)(1+), ks = 2.5E7 s-1.The values of ks for reaction of 4-MeOC6H4CR1(R2)(1+) with 50:50 (v/v) trifluoroethanol/water are nearly independent of very large changes in the thermodynamic stability of these carbocations caused by the addition of a wide range of electron-withdrawing or electron-donating groups at the α-position.In the most extreme case, the change from an α-methoxy to two α-(trifluoromethyl) substituents leads to a 23 kcal/mol thermodynamic destabilization of 4-MeOC6H4CR1(R2)(1+) relative to the neutral azide ion adducts but a 5-fold decrease in its reactivity toward solvent.The data show that the effects of α-substituents on the kinetic stability of 4-MeOC6H4CR1(R2)(1+) are complex and do not parallel the thermodynamic stability of these carbocations.The results are explained by consideration of the polar and resonance effects of the α-substituents on both the thermodynamic driving force and the intrinsic barrier for capture of the carbocations by solvent.These reactions are a new example of the consequences of the "principle of nonperfect synchronization".

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