Abstract 1-(3-Morpholinoprop-2-enyl)benzotriazole (1) provides a three carbon unit for the construction of dihydro- and tetrahydro-furan rings by one pot procedures. Lithiation of 1 followed by reaction with diaryl ketones gave 2,5-dihydro- and/or α-hydroxytetrahydro-furans, whereas successive reactions with iodoalkanes and diaryl ketones yielded 2,3-dihydrofurans.
                                    摘要 1-(3-Morpholinoprop-2-enyl)benzotriazole (1) 为通过一锅法构建二氢和
四氢呋喃环提供了一个三碳单元。1 的
锂化,然后与二芳基酮反应得到 2,5-二氢-和/或 α-羟基四氢-
呋喃,而与
碘代
烷烃和二芳基酮的连续反应得到 
2,3-二氢呋喃。