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1174337-27-9

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1174337-27-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1174337-27-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,3,3 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1174337-27:
(9*1)+(8*1)+(7*7)+(6*4)+(5*3)+(4*3)+(3*7)+(2*2)+(1*7)=149
149 % 10 = 9
So 1174337-27-9 is a valid CAS Registry Number.

1174337-27-9Downstream Products

1174337-27-9Relevant articles and documents

Microwave-Assisted Electrostatically Enhanced Phenol-Catalyzed Synthesis of Oxazolidinones

Rostami, Ali,Ebrahimi, Amirhossein,Sakhaee, Nader,Golmohammadi, Farhad,Al-Harrasi, Ahmed

, p. 40 - 55 (2021/10/20)

An electrostatically enhanced phenol is utilized as a straightforward, sustainable, and potent one-component organocatalyst for the atom-economic transformation of epoxides to oxazolidinones under microwave irradiation. Integrating a positively charged center into phenols over a modular one-step preparation gives rise to a bifunctional system with improved acidity and activity, competent in rapid assembly of epoxides and isocyanates under microwave irradiation in a short reaction time (20-60 min). A careful assessment of the efficacy of various positively charged phenols and anilines and the impact of several factors, such as catalyst loading, temperature, and the kind of nucleophile, on catalytic reactivity were examined. Under neat conditions, this one-component catalytic platform was exploited to prepare more than 40 examples of oxazolidinones from a variety of aryl- and alkyl-substituted epoxides and isocyanates within minutes, where up to 96% yield and high degree of selectivity were attained. DFT calculations to achieve reaction barriers for different catalytic routes were conducted to provide mechanistic understanding and corroborated the experimental findings in which concurrent epoxide ring-opening and isocyanate incorporation were proposed.

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