作者:Augusto C. Tomé、José A.S. Cavaleiro、Richard C. Storr
DOI:10.1016/0040-4020(95)01009-2
日期:1996.1
The pyrimidine sulfones 10, R = Me; Nu = OMe, NEt2, SPh, H and 11, R = Ph; Nu = OMe were synthesised from the dihydrothienopyrimidones 7, R = Me, Ph by conversion to the chloro derivatives 8 followed by oxidation with mCPBA and reaction with the appropriate nucleophile or hydrogen and Pd. Heating of the sulfones in 1,2,4-trichlorobenzene gave the pyrimidine o-quinodimethanes which were intercepted
嘧啶砜10,R = Me; Nu = OMe,NEt 2,SPh,H和11,R = Ph;由二氢噻吩并嘧啶酮7(R = Me,Ph)转化为氯衍生物8,然后用mCPBA氧化并与适当的亲核试剂或氢和Pd反应,合成Nu = OMe 。在1,2,4-三氯苯中加热砜,得到嘧啶-邻-喹二甲烷,其在狄尔斯-阿尔德反应中截获,得到四氢喹唑啉。