[3 + 2] Cycloaddition of nitrile oxides to dichloropropenes and 1,3‐dichlorobut‐2‐ene: A regioselectivity issue
作者:Alexandra N. Shilova、Nina S. Shatokhina、Evgeniy V. Kondrashov
DOI:10.1002/jhet.4787
日期:2024.4
The reaction of nitrileoxides with 2,3-dichloroprop-1-ene, 1,3-dichloroprop-1-ene, and 1,3-dichlorobut-2-ene leads to 5-(chloromethyl)isoxazoles, 4-(chloromethyl)isoxazoles, or to mixtures of both regioisomers. The direction of cycloaddition and reactivity of substrate is determined by the steric hindrance at the terminal carbon atom of the alkene double bond. It has been found that the isomeric products
Collins, David J.; Hughes, Timothy C.; Johnson, Wynona M., Australian Journal of Chemistry, 2000, vol. 53, # 2, p. 137 - 141
作者:Collins, David J.、Hughes, Timothy C.、Johnson, Wynona M.
DOI:——
日期:——
Regioselective synthesis of C-nucleosides by 1,3-dipolar cycloaddition of arylnitrile oxides to 5,6-dideoxy-1,2-O-iso-propylidene-α-d-xylo-hex-5-enofuranose