Studies on quinones. XV. A convenient entry into thetetrahydrophenanthrene-1,4-quinone system utilizing the dienone-phenol rearrangement of spiro [cyclopentanenaphthalene]triones
作者:R. Cassis、M. Scholz、R. Tapia、J.A. Valderrama
DOI:10.1016/s0040-4039(01)84577-9
日期:——
A four-step approach to the synthesis of 10-acetyloxi-5,6,7,8-tetrahydrophenanthrene-1,4-derivatives, starting from acylbenzoquinones, is described.
描述了一种从酰基苯醌开始合成10-乙酰氧基-5,6,7,8-四氢菲-1,4-衍生物的四步法。
CASSIS, RAUL;SCHOLZ, MONICA;TAPIA, RICARDO;VALDERRAMA, JAIME A., J. CHEM. SOC. PERKIN TRANS.,(1987) N 12, 2855-2859
作者:CASSIS, RAUL、SCHOLZ, MONICA、TAPIA, RICARDO、VALDERRAMA, JAIME A.
DOI:——
日期:——
Dienone-phenol rearrangement of naphthalenetriones. A route to 10-acetoxy5,6,7,8-tetra hydrophenanthrene-1,4-diones
作者:Ra�l Cassis、M�nica Scholz、Ricardo Tapia、Jaime A. Valderrama
DOI:10.1039/p19870002855
日期:——
Naphthalene-1,4,5(8H)-triones (17) and (18) prepared in a three-step approach from the corresponding acylbenzoquinones (1) and (2), undergo an unusually rapid dienone-phenolrearrangement in acetic anhydride–sulphuric acid solution to give 5-acetoxy-7,8-dimethyl- and 5-acetoxy-6,7,8-trimethyl-1,4-naphthoquinone (19) and (20) in good yields.