and XV, in 82-85% yields. As a typical example: the lithium salt of 2-nitropropane3 (14.3 g) is placed in a dry flask fitted with a stirrer and a rubber stopple. The system is swept with nitrogen for 0.5 hr and then 375 ml of DMSO (distilled from calcium hydride and stored under nitrogen) is introduced through the stopple using a hypodermic syringe. This is followed by the addition of 12.43 g of ethyl a-nitroi~ obutyrate~ and then the nitrogen flow is ...
