1: acetone With potassium hydride in tetrahydrofuran
T=20°C;
2: 1-(1,1-dimethylethyl) 4-piperidinedicarboxylate anhydride with 1H-imidazole-1-carboxylic acid in tetrahydrofuran
T=-78 - 20°C;
参考文献
Carling, William Robert; Elliott, Jason Matthew; Mezzogori, Elena; Russell, Michael Geoffrey Neil; Williams, Brian John
Patent: US2009/54440 A1, 2009 ;
Location in patent: Page/Page column 34-35 ;