Abstract
Chaetomellic anhydride A was efficiently attained in three steps, starting from 2,2-dichloropalmitic acid and 2-(3-chloro-2-propenylamino)pyridine. Atom transfer radical cyclisation selectively formed the cis-stereoisomer of the trichloropyrrolidin-2-one, which underwent a stereospecific functional rearrangement to form a substituted maleimide. The choice of 2-pyridyl, as 'cyclisation auxiliary' in the atom transfer radical cyclisation step, proved beneficial for hydrolysis of the maleimide to form the desired anhydride. (c) 2005 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 746-757 |
Number of pages | 12 |
Journal | Tetrahedron |
Volume | 62 |
Issue number | 4 |
DOIs | |
Publication status | Published - 23 Jan 2006 |
Keywords
- halocompound
- pyrrolidinone
- radical reaction
- rearrangement
- FARNESYL-PROTEIN TRANSFERASE
- TRANSFER RADICAL CYCLIZATION
- STEREOSELECTIVE-SYNTHESIS
- DIMETHYLMALEIC ANHYDRIDE
- MOLECULAR MECHANICS
- EFFICIENT SYNTHESIS
- FACILE SYNTHESIS
- GAMMA-LACTAMS
- CUCL-TMEDA
- ANALOGS