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71778-41-1

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71778-41-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71778-41-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,7 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71778-41:
(7*7)+(6*1)+(5*7)+(4*7)+(3*8)+(2*4)+(1*1)=151
151 % 10 = 1
So 71778-41-1 is a valid CAS Registry Number.

71778-41-1Relevant articles and documents

A Transition-Metal-Free and Base-Mediated Carbene Insertion into Sulfur-Sulfur and Selenium-Selenium Bonds: An Easy Access to Thio- and Selenoacetals

Arunprasath, Dhanarajan,Sekar, Govindasamy

, p. 698 - 708 (2017/02/23)

A transition-metal-free and base-mediated carbene insertion across sulfur-sulfur and selenium-selenium bonds has been developed by employing N-tosylhydrazone as a stable and safe carbene precursor. The ylide formation from carbene followed by Stevens rearrangement are considered to be the key steps. This thiol and selenol-free protocol delivers thioacetals and selenoacetals in good to excellent yields in short reaction time with good functional group tolerance. A one-pot synthesis involving in situ generation of tosylhydrazone has also been demonstrated. (Figure presented.).

Ethyl lactate mediated thioacetalization of aldehydes at ambient temperature

Wan, Jie-Ping,Jing, Yanfeng,Liu, Yunyun

, p. 1302 - 1305 (2016/09/28)

Dithioacetalization reactions of aldehydes with thiols/thiophenols have been successfully achieved at room temperature by employing the green, bio-based ethyl lactate as the reaction medium. By means of this sustainable approach, a class of dithioacetals has been acquired with high diversity and efficiency.

Cerium triflate: An efficient and recyclable catalyst for chemoselective thioacetalization of carbonyl compounds under solvent-free conditions

Kumar, Anil,Rao, M. Sudershan,Kameshwara Rao

experimental part, p. 135 - 140 (2010/05/18)

A simple and efficient chemoselective thioacetalization of carbonyl compounds has been achieved using Ce(OTf)3 (10 mol-%) as a catalyst under solvent-free conditions. Advantages of the methodology include very short reaction times, excellent yi

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