2-Picoline catalyst-triggered [2 + 2 + 2] cycloaddition-type reaction of acetylenedicarboxylates, aldehydes and alkenes.
Org Biomol Chem
; 16(33): 5965-5968, 2018 08 22.
Article
em En
| MEDLINE
| ID: mdl-30095831
ABSTRACT
2-Picoline efficiently catalyzes the formation of α,ß-enones from acetylenedicarboxylates and aldehydes in the presence of alkenes, thereby leading to pyrans in moderate to good yields with complete regioselectivities. This synthetic method of pyrans is represented as a first example of catalytic and direct [2 + 2 + 2] cycloaddition of three different components under the metal-free conditions.
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MEDLINE
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En
Ano de publicação:
2018
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Article