TY - JOUR
T1 - Ring expansion of isopropenyldihydrofuran derivatives
AU - Yamaguchi, Seiji
AU - Tsuchida, Nao
AU - Umeda, Kayoko
AU - Yokoyama, Hajime
AU - Miyazawa, Masahiro
AU - Hirai, Yoshiro
PY - 2006/5
Y1 - 2006/5
N2 - Lactonization of 2-(hydroxymethyl)-5-isopropenyl-4,5-dihydrofuran-3- carboxylic acids 1a,b,c with dicyclohexylcarbodiimide gave the corresponding furano-lactones, 5-isopropenyl-5,6-dihydro-1(3H)-furo[3,4-e]furanone 2a,b,c, which were readily converted to the corresponding oxepino-lactones, 6-methyl-5,8-dihydro-1(3H)-furo[3,4-e]oxepinone 3a,b,c by respective thermal ring expansions.
AB - Lactonization of 2-(hydroxymethyl)-5-isopropenyl-4,5-dihydrofuran-3- carboxylic acids 1a,b,c with dicyclohexylcarbodiimide gave the corresponding furano-lactones, 5-isopropenyl-5,6-dihydro-1(3H)-furo[3,4-e]furanone 2a,b,c, which were readily converted to the corresponding oxepino-lactones, 6-methyl-5,8-dihydro-1(3H)-furo[3,4-e]oxepinone 3a,b,c by respective thermal ring expansions.
UR - http://www.scopus.com/inward/record.url?scp=33745002539&partnerID=8YFLogxK
U2 - 10.1002/jhet.5570430319
DO - 10.1002/jhet.5570430319
M3 - 学術論文
AN - SCOPUS:33745002539
SN - 0022-152X
VL - 43
SP - 657
EP - 662
JO - Journal of Heterocyclic Chemistry
JF - Journal of Heterocyclic Chemistry
IS - 3
ER -