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1174638-52-8

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1174638-52-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1174638-52-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,6,3 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1174638-52:
(9*1)+(8*1)+(7*7)+(6*4)+(5*6)+(4*3)+(3*8)+(2*5)+(1*2)=168
168 % 10 = 8
So 1174638-52-8 is a valid CAS Registry Number.

1174638-52-8Downstream Products

1174638-52-8Relevant articles and documents

Highly Selective Syn Addition of 1,3-Diones to Internal Ynamides Catalyzed by Zinc Iodide

Plamont, Rémi,Graux, Lionel V.,Clavier, Hervé

, p. 1372 - 1376 (2018/04/02)

1,3-Diones are already established as nucleophiles to perform additions to ynamides; the highly selective hydroalkoxylation of internal ynamides is now described. Several catalytic systems have been compared to perform this transformation, including transition-metal-based catalysts and Lewis acids. ZnI2 was found to be both very active and highly selective providing only E adducts through a syn addition. Investigation of the scope and limitations showed that this catalyst was compatible with various functional groups. In addition to seventeen examples of ynamide hydroalkoxylation, one example of ynamide hydroarylation is reported.

Synthesis of Highly Functionalized 4-Aminoquinolines

Wezeman, Tim,Zhong, Sabilla,Nieger, Martin,Br?se, Stefan

, p. 3823 - 3827 (2016/04/05)

A diverse set of highly substituted 4-aminoquinolines was synthesized from ynamides, triflic anhydride, 2-chloropyridine, and readily accessible amides in a mild one-step procedure. Diverse products: Electrophilically activated amides easily react with sulfonyl ynamides to yield a diverse range of substituted 4-aminoquinolines. The ynamides can be easily modified by Sonogashira processes or generated from dichloroenamide precursors. Any substituent can thus be introduced at the C3 position of the quinoline. 2-ClPy=2-chloropyridine, Tf2O=triflic anhydride.

Copper-mediated selective cross-coupling of 1,1-dibromo-1-alkenes and heteronucleophiles: Development of general routes to heterosubstituted alkynes and alkenes

Jouvin, Kevin,Coste, Alexis,Bayle, Alexandre,Legrand, Frederic,Karthikeyan, Ganesan,Tadiparthi, Krishnaji,Evano, Gwilherm

, p. 7933 - 7947 (2013/01/16)

Efficient and general procedures for the cross-coupling of 1,1-dibromoalkenes and N-, O-, and P-nucleophiles are reported. Fine-tuning of the reaction conditions allows for either site-selective, double, or alkynylative cross-coupling, therefore providing

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