Abstract:
The complete assignement of the 1H and
13C-nmr signal for Qinghaosu 1 has been made. Treatment of 1
with methoxide ion at 80ºC results in bright luminescence when carried
out in the presence of fluorescers. Several prducts are formed when methanol
is present, but in toluene only one product is formed when methanol-free
methoxide is used. Its structure is tentavely assigned as 1-(1-methoxycarbonylethyl)-2,6-dimethyl-2-hydroxy-
bicyclo[3.3.1]nonan-9-one.