α-nitrocycloalkanones and successive dehydration of the obtained β-nitroalkanols, by acetylation and dehydroacetylation with basic alumina/DMAP, in refluxing dichloromethane, affords, in one-pot procedure, conjugated nitrocycloalkenes.
                                    在回流的
二氯甲烷中,通过碱性氧化铝/ 
DMAP的乙酰化和脱氢乙酰化作用,将
硼氢化钠还原α-硝基环烷酮,然后将所得的β-硝基链烷醇连续脱
水,一锅法制得共轭硝基环烯烃。