A New Highly Efficient Method for the Catalyst-Free Synthesis of Conjoined Twins 1,6-Dioxaspiro Derivatives Through Double Reaction of Carbon Dioxide in One Reaction

作者：Safaei Hamid Reza^*; Khastkhoda Tahereh; Shekouhy Mohsen

来源：ChemistrySelect, 2018, 3(23): 6273-6278.

DOI：10.1002/slct.201801082

• CO2 fixation
• conjoined twins 1,6-dioxaspiro compounds
• double reaction of carbon dioxide
• one-pot synthesis

A new highly efficient method for the catalyst-free synthesis of germinal spiro compounds through a one-pot three-component condensation reaction of carbon dioxide, amines and dimethyl acetylenedicarboxylate at room temperature is described. In this methodology, both C=O bonds of CO2 are concurrently reacting in a one-pot reaction. The structures of all obtained products were assigned with H-1 and (CNMR)-C-13, MS, IR and elemental analysis.

• 出版日期2018-6-22