title: Capture-Collapse Heterocyclization: 1,3-Diazepanes by C-N Reductive Elimination from Rhodacyclopentanones.
abstract: Rhodacyclopentanones derived from carbonylative C-C activation of cyclopropyl ureas can be "captured" by pendant nucleophiles prior to "collapse" to 1,3-diazepanes. The choice of N-substituent on the cyclopropane unit controls the oxidation level of the product, such that C4-C5 unsaturated or saturated systems can be accessed selectively.
authors: School of Chemistry, University of Bristol , Bristol, BS8 1TS, United Kingdom.
authors: Niall G
authors: NG
authors: McCreanor
authors: School of Chemistry, University of Bristol , Bristol, BS8 1TS, United Kingdom.
authors: Steven
authors: S
authors: Stanton
authors: School of Chemistry, University of Bristol , Bristol, BS8 1TS, United Kingdom.
authors: John F
authors: JF
authors: Bower