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55674-14-1

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55674-14-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55674-14-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,7 and 4 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 55674-14:
(7*5)+(6*5)+(5*6)+(4*7)+(3*4)+(2*1)+(1*4)=141
141 % 10 = 1
So 55674-14-1 is a valid CAS Registry Number.

55674-14-1Relevant articles and documents

Synthesis of Ketones by C?H Functionalization of Aldehydes with Boronic Acids under Transition-Metal-Free Conditions

Roscales, Silvia,Csáky, Aurelio G.

supporting information, p. 8728 - 8732 (2021/03/16)

A method for the synthesis of ketones from aldehydes and boronic acids via a transition-metal-free C?H functionalization reaction is reported. The method employs nitrosobenzene as a reagent to drive the simultaneous activation of the boronic acid as a boronate and the activation of the C?H bond of the aldehyde as an iminium species that triggers the key C?C bond-forming step via an intramolecular migration from boron to carbon. These findings constitute a practical, scalable, and operationally straightforward method for the synthesis of ketones.

Iodine mediated a simple strategy for the synthesis of β,γ-unsaturated-α-ketoesters and its application for the synthesis of 4,5-dihydropyrazole derivatives

Pommidi, Anil,Shaik, Asha Begum,Chatterjee, Anindita,Somarapu, Vijaya Laxmi

, p. 1545 - 1553 (2020/03/05)

Abstract: Novel and efficient method for the synthesis of a series of β,γ-unsaturated-α-ketoesters under mild conditions was developed. This one-step protocol was achieved by the reaction of electron-rich aromatic aldehydes and pyruvates in the presence o

Direct Synthesis of β,γ-Unsaturated α-Keto Esters from Aldehydes and Pyruvates

Mansaray, John Kamanda,Sun, Jiarui,Huang, Shisheng,Yao, Weijun

supporting information, p. 809 - 813 (2019/04/25)

Herein, we describe two practical methods to synthesize β,γ-unsaturated α-keto esters directly from aldehydes and pyruvates promoted by BF 3 ?Et 2 O in the presence of Ac 2 O or by Ti(OEt) 4 under mild condition

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