3-芳酰基-4-羟基-2-喹诺酮类4和11可以开始进行合成1或9 通过Fries重排的相应的酯的3和10,通过氰化钾和18-冠-6催化。提出了一种一锅法,其中不需要分离酯。用锌粉还原芳基酮4和11导致苄基衍生物5和12。芳基酮4和11与羟胺反应,随后加热粗产物,通过贝克曼热重排和脱水生成恶唑喹诺酮7和14。通过Fries重排不能将2-芳氧基吡啶并[1,2- a ]嘧啶-4-酮17和20转化为相应的酮。
A Simple Method for the Synthesis of 5-Methyloxazolo[4,5-<i>c</i>]quinolin-4(5<i>H</i>)-ones
作者:J. R. Merchant、S. S. Shirali
DOI:10.1246/bcsj.50.3075
日期:1977.11
A general and simple method for the synthesis of oxazolo[4,5-c]quinoline-4(5H)-ones by heating 3-amino-4-hydroxy-2-quinolone hydrochloride with aromatic acids in the presence of PPA has been described. The structures are based on spectral and analytical data.
PONOMAREV, O. A.;BRUSILTSEV, YU. N.;GRIF, V. X.;MITINA, V. G., YKP. XIM. ZH., 56,(1990) N, S. 272-276
作者:PONOMAREV, O. A.、BRUSILTSEV, YU. N.、GRIF, V. X.、MITINA, V. G.
DOI:——
日期:——
Synthesis and reactions of 3-aroyl derivatives of 4-hydroxy-2-quinolones and 4-hydroxycoumarin
作者:Thomas Kappe、Barbara Schnell
DOI:10.1002/jhet.5570330324
日期:1996.5
cyanide and 18-crown-6. A one pot procedure is presented in which the esters do not need to be isolated. Reduction of the aryl ketones 4 and 11 with zinc dust leads to the benzyl derivatives 5 and 12. Reaction of the aryl ketones 4 and 11 with hydroxylamine and subsequent heating of the crude product leads via thermal Beckmann rearrangement and dehydration to oxazoloquinolones 7 and 14. 2-Aroyloxypyrido[1
3-芳酰基-4-羟基-2-喹诺酮类4和11可以开始进行合成1或9 通过Fries重排的相应的酯的3和10,通过氰化钾和18-冠-6催化。提出了一种一锅法,其中不需要分离酯。用锌粉还原芳基酮4和11导致苄基衍生物5和12。芳基酮4和11与羟胺反应,随后加热粗产物,通过贝克曼热重排和脱水生成恶唑喹诺酮7和14。通过Fries重排不能将2-芳氧基吡啶并[1,2- a ]嘧啶-4-酮17和20转化为相应的酮。