γ‐Nitro‐γ‐butyrolactoneBy oxidation of 3‐(1‐nitro‐2‐oxocyclohexyl)propanal (1) with KMnO4, besides 3‐(1′‐nitro‐2′‐oxocyclohexyl)pripionic acid (2), the complete hydrolysis product 4‐oxononanedioic acid (4) and the oxidized semi‐hydrolysis product 5‐(2‐nitro‐5‐oxotetrahydro‐2‐furyl)pentanoic acid (3) were formed. The crystalline 3 decomposes at r.t. forming 4 and nitrous gases; its structure was established by X‐ray determination.
γ‐Nitro‐γ‐butyrolactoneBy oxidation of 3‐(1‐nitro‐2‐oxocyclohexyl)propanal (1) with KMnO4, besides 3‐(1′‐nitro‐2′‐oxocyclohexyl)pripionic acid (2), the complete hydrolysis product 4‐oxononanedioic acid (4) and the oxidized semi‐hydrolysis product 5‐(2‐nitro‐5‐oxotetrahydro‐2‐furyl)pentanoic acid (3) were formed. The crystalline 3 decomposes at r.t. forming 4 and nitrous gases; its structure was established by X‐ray determination.