Ontology highlight
ABSTRACT:
SUBMITTER: Brawn RA
PROVIDER: S-EPMC3164280 | biostudies-literature | 2009 Jan
REPOSITORIES: biostudies-literature
Brawn Ryan A RA Panek James S JS
Organic letters 20090101 2
Highly enantioenriched allenylsilanes participate in Lewis acid mediated annulations with in situ generated iminium ions derived from tert-butyl carbamate and methyl carbamate to selectively form functionalized 4,5-dihydropyrroles and 4,5-dihyrooxazines, respectively. The dihydropyrrole products were further elaborated in a stereocontrolled vinylsilane terminated cyclization with in situ generated oxonium ions, resulting in pyranopyrroles. ...[more]