Thermal [4 + 2] cycloadditions of 3-acetyl-, 3-carbamoyl-, and 3-ethoxycarbonyl-coumarins with 2,3-dimethyl-1,3-butadiene under solventless conditions: a structural study.
Flores-Larios
Irma Y
IY
Facultad de Ciencias Químicas, Universidad de Colima, km 9 Carretera Coquimatlán-Colima, Coquimatlán Colima 28400, Mexico.
López-Garrido
Lizbeth
L
Martínez-Martínez
Francisco J
FJ
González
Jorge
J
García-Báez
Efrén V
EV
Cruz
Alejandro
A
Padilla-Martínez
Itzia I
II