Synthesis and Utility of 2,2-Dimethyl-2<i>H</i>-pyrans: Dienes for Sequential Diels–Alder/Retro-Diels–Alder Reactions
作者:David Tejedor、Abián Díaz-Díaz、Raquel Diana-Rivero、Samuel Delgado-Hernández、Fernando García-Tellado
DOI:10.1021/acs.orglett.8b03558
日期:2018.12.21
The practical use of 2,2-dimethyl-2H-pyrans as electron-rich dienes in sequential Diels–Alder/retro-Diels–Alder (DA/rDA) domino processes to generate aromatic platforms has been demonstrated. Different polysubstituted alkyl 2-naphthoates have been synthesized by the DA/rDA reaction of benzynes and 2,2-dimethyl-2H-pyrans. The use of other activated alkynes allows the access of substituted alkyl benzoate
已经证明,在连续的Diels-Alder / retro-Diels-Alder(DA / rDA)多米诺工艺中使用2,2-二甲基-2 H-吡喃作为富电子二烯来生成芳族平台。不同取代烷基-2-萘已由benzynes和2,2-二甲基-2的DA / RDA反应合成ħ -pyrans。使用其他活化的炔烃可以得到取代的苯甲酸烷基酯衍生物。