Add time:08/05/2019         Source:sciencedirect.com

A convenient synthesis and structural characterization of (Z)- and (E)-trans-2,3-dihydro-2-methyl-3-(1,2,4-triazolyl)-4H-1-benzopyran-4-one oxime ethers has been achieved. By analysis of vicinal interproton coupling constants, it is believed that trans-2,3-dihydro-2-methyl-3-(1,2,4-triazolyl)-4H-1-benzopyran-4-ones which exist predominantly in the diequatorial half-chair or sofa conformation was found to exist predominantly in the diaxial orientation upon conversion to the corresponding oxime ether derivatives.

We also recommend Trading Suppliers and Manufacturers of 2,3-Dihydro-3-methyl-4H-1-benzopyran-4-one (cas 16982-86-8). Pls Click Website Link as below: cas 16982-86-8 suppliers