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1157545-44-2

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1157545-44-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1157545-44-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,7,5,4 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1157545-44:
(9*1)+(8*1)+(7*5)+(6*7)+(5*5)+(4*4)+(3*5)+(2*4)+(1*4)=162
162 % 10 = 2
So 1157545-44-2 is a valid CAS Registry Number.

1157545-44-2Downstream Products

1157545-44-2Relevant articles and documents

A General and Selective Rhodium-Catalyzed Reduction of Amides, N-Acyl Amino Esters, and Dipeptides Using Phenylsilane

Das, Shoubhik,Li, Yuehui,Lu, Liang-Qiu,Junge, Kathrin,Beller, Matthias

supporting information, p. 7050 - 7053 (2016/05/19)

This article describes a selective reduction of functionalized amides, including N-acyl amino esters and dipeptides, to the corresponding amines using simple [Rh(acac)(cod)]. The catalyst shows excellent chemoselectivity in the presence of different sensitive functional moieties. A selective reduction of functionalized amides, including N-acyl amino esters and dipeptides, to the corresponding amines using simple [Rh(acac)(cod)] is described (see scheme). The catalyst shows excellent chemoselectivity in the presence of different sensitive functional moieties. Even the selective reduction of a secondary amide bond in the presence of a ketone is possible.

Zinc-catalyzed chemoselective reduction of tertiary and secondary amides to amines

Das, Shoubhik,Addis, Daniele,Junge, Kathrin,Beller, Matthias

experimental part, p. 12186 - 12192 (2011/11/07)

General and convenient procedures for the catalytic hydrosilylation of secondary and tertiary amides under mild conditions have been developed. In the presence of inexpensive zinc catalysts, tertiary amides are easily reduced by applying monosilanes. Key to success for the reduction of the secondary amides is the use of zinc triflate and disilanes with dual Si-H moieties. The presented hydrosilylations proceed with excellent chemoselectivity in the presence of sensitive ester, nitro, azo, nitrile, olefins, and other functional groups, thus making the method attractive for organic synthesis.

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