Add time:08/17/2019         Source:sciencedirect.com

Treatment of alkyne–Co2(CO)6 complexes possessing a methylidene moiety as well as a terminal hydroxy functionality with SnCl4 at 0°C effected tandem ring-closure reactions resulting in the formation of 1-oxaspiro[4.4]nonane, 1-oxaspiro[4.5]decane, 6-oxaspiro[4.5]decane, and 1-oxaspiro[5.5]undecane frameworks in high yields.

We also recommend Trading Suppliers and Manufacturers of 1-Oxaspiro[3.5]nonan-2-one, 3-methylene- (cas 135638-62-9). Pls Click Website Link as below: cas 135638-62-9 suppliers