UV-mediated decomposition of diazomalonates in benzene: Unexpected access to functionalized bicyclo[3.2.0]heptane skeleton

作者：Chiang Yi Jung; Zhu Jia Liang^*

来源：Tetrahedron Letters, 2017, 58(31): 3081-3084.

DOI：10.1016/j.tetlet.2017.06.070

• Diazomalonates
• Benzene
• UV-mediated decomposition
• Cycloheptatriene
• Bicyclo[3.2.0]heptanes

Upon irradiation with 300-nm UV light, the photolysis of diazomalonates in benzene unexpectedly affords 2,6-dicarboxylate bicyclo[3.2.0]hepta-2,6-dienes in low yields. These products are proven to be derived from cyclohepta-1,3,5-triene intermediates presumably via a tandem 1,5-carboxylate migration[2+2] cycloaddition sequence.

• 出版日期2017-8-2
• 单位东华大学