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221527-77-1

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221527-77-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221527-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,5,2 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 221527-77:
(8*2)+(7*2)+(6*1)+(5*5)+(4*2)+(3*7)+(2*7)+(1*7)=111
111 % 10 = 1
So 221527-77-1 is a valid CAS Registry Number.

221527-77-1Relevant articles and documents

Lanthanide-Catalyzed Tandem Addition of Amines to Cyanoalkenes: Synthesis of Cyclic Amidines

Hou, Jinsong,Yang, Gaosheng,Chai, Zhuo

, p. 453 - 463 (2022/01/04)

A tandem insertion of aliphatic nitriles and unactivated alkenes to the N-H bond of secondary aliphatic amines catalyzed by simple trialkyl rare-earth metal complexes was disclosed. This reaction provides a highly atom-economic and stereoselective way to a range of cyclic amidines under mild reaction conditions.

Palladium-catalyzed oxidative arylacetoxylation of alkenes: Synthesis of indole and indoline derivatives

Karnakanti, Shuklachary,Zang, Zhong-Lin,Zhao, Sheng,Shao, Pan-Lin,Hu, Ping,He, Yun

supporting information, p. 11205 - 11208 (2017/10/17)

A method for the oxidative arylacetoxylation of alkenes has been developed to synthesize indole and indoline derivatives from readily accessible substrates. The cinnamyl tethered anilines with picolinamide as a directing group provided 3-substituted indoles via intramolecular oxidative arylacetoxylation, and the 2-methyl substituted cinnamyl anilines furnished indoline derivatives with 3-position quaternary stereocenters in good to excellent yields via sequential intramolecular oxidative arylacetoxylation, hydrolysis and oxidation steps.

Catalytic enantioselective allyl-allyl cross-coupling with a borylated allylboronate

Le, Hai,Kyne, Robert E.,Brozek, Laura A.,Morken, James P.

supporting information, p. 1432 - 1435 (2013/07/05)

Catalytic enantioselective allyl-allyl cross-coupling of a borylated allylboronate reagent gives versatile borylated chiral 1,5-hexadienes. These compounds may be manipulated in a number of useful ways to give functionalized chiral building blocks for asymmetric synthesis.

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