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169177-57-5

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169177-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 169177-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,1,7 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 169177-57:
(8*1)+(7*6)+(6*9)+(5*1)+(4*7)+(3*7)+(2*5)+(1*7)=175
175 % 10 = 5
So 169177-57-5 is a valid CAS Registry Number.

169177-57-5Relevant articles and documents

Regio- And chemoselective synthesis of nitrogen-containing heterocycles: Via the oxidative cascade cyclization of unactivated 1, n -enynes

Mutra, Mohana Reddy,Dhandabani, Ganesh Kumar,Li, Jing,Wang, Jeh-Jeng

, p. 2051 - 2054 (2020/02/22)

The development of a method for performing radical initiated intramolecular cascade cyclization of 1,n-enynes provided a competent protocol for producing structurally diverse complex heterocycles. Herein, we demonstrate I2/TBHP promoted, solven

A gold(i)-catalyzed intramolecular oxidation-cyclopropanation sequence of 1,6-enynes: A convenient access to [n.1.0]bicycloalkanes

Qian, Deyun,Zhang, Junliang

supporting information; experimental part, p. 11152 - 11154 (2011/11/06)

A gold(i)-catalyzed tandem oxidation/cyclopropanation reaction of 1,6-enynes with an external oxidant has been developed. This quite simple and rapid strategy will provide a safe, mild and versatile avenue to numerous carbo- and hetero [n.1.0]bicyclic frameworks.

Selective ene-yne coupling functionalization: A new strategy in constructing heterocycles

Wang,Lu

, p. 2639 - 2658 (2007/10/02)

Fluorinated derivatives of 3-alkylidene-2(3H)-dihydrofuranone have been synthesized by sodium dithionite initiated tandem perfluoroalkylation-cyclization of allylic 2-alynoates in fair to good yield and high stereoselectivity. Fluorinated 3-alkylidene-2(3

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