TY  - JOUR
A1  - Schultze, Christiane
A1  - Schmidt, Bernd
T1  - Functionalized Benzofurans via Microwave-Promoted Tandem Claisen-Rearrangement/5-endo-dig Cyclization
T2  - Journal of heterocyclic chemistry
N2  - Ortho-allyloxy alkinyl benzenes undergo, upon microwave irradiation in dimethylformamide, a tandem sequence of Claisen-rearrangement and 5-endo-dig cyclization to furnish 7-allyl-substituted benzofurans. With terminal alkynes, chroman-4-ones and enaminoketones become the main products. A mechanistic proposal for this observation relies on a reaction of the starting material with the solvent dimethylformamide under the microwave conditions.
Y1  - 2019
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/48472
SN  - 0022-152X
SN  - 1943-5193
VL  - 56
IS  - 9
SP  - 2619
EP  - 2629
PB  - Wiley
CY  - Hoboken
ER  -