NATURAL PRODUCT CHEMISTRY .171. BEHAVIOR OF -TETRAHYDRO-3-QUINOLIN-2,4(1H,3H)-DIONECARBOXYLATE IN THE PRESENCE OF 1,8-DIAZABICYCLO[5,4,0]UNDEC-7-ENE(DBU)

Authors
REISCH J IDING M VONBASSEWITZ I
Citation
J. Reisch et al., NATURAL PRODUCT CHEMISTRY .171. BEHAVIOR OF -TETRAHYDRO-3-QUINOLIN-2,4(1H,3H)-DIONECARBOXYLATE IN THE PRESENCE OF 1,8-DIAZABICYCLO[5,4,0]UNDEC-7-ENE(DBU), Monatshefte fuer Chemie, 124(11-12), 1993, pp. 1225-1227
Citations number
4
Categorie Soggetti
Chemistry
Journal title
Monatshefte fuer Chemie → ACNP
ISSN journal
00269247
Volume
124
Issue
11-12
Year of publication
1993
Pages
1225 - 1227
Database
ISI
SICI code
0026-9247(1993)124:11-12<1225:NPC.BO>2.0.ZU;2-C
Abstract
In the presence of pentaisopropylguanidine (PIG) ethyl-(E)-4-[(4-bromo -3-methylbut nyl)-oxy]-N-methyl-3-quinolin-2(1H)-onecarboxylate was co nverted into dihydro-N-methyl-3-quinolin-2(1H)-onecarboxylate]. The re action of yl)-N-methyl-1,2,3,4-tetrahydro-3-quinolin-2,4(1H, 3H)-dione carboxylate and 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU) gave the 2(1H )-quinolone alkaloid (+/-)-Almeine and o-[1,2-c]-[5,1,3]benzoxadiazoci n-11,17(12H)-dione.