| Literature DB >> 16018678 |
Hassan Sheibani1, Paul V Bernhardt, Curt Wentrup.
Abstract
Metastable but isolable mesoionic 1,3-oxazinium 4-olates 9d-f undergo ring opening to acylketenes 10 at or near room temperature. The ketenes undergo intramolecular criss-cross [2 + 2] cycloaddition to afford 3-azabicyclo[3.1.1]heptanetriones 12. The structure of 12d was established by X-ray crystallography.Entities:
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Year: 2005 PMID： 16018678 DOI： 10.1021/jo050428m
Source DB: PubMed Journal: J Org Chem ISSN： 0022-3263 Impact factor: 4.354