Affiliation:
1. School of Chemistry and Analytical and Biological Research Facility University College Cork T12 YN60 Cork Ireland
2. Department of Chemistry and Biochemistry University of California Los Angeles, California 90095-1596 USA
3. University of Southampton Chemistry Department University Road Southampton SO17 1BJ UK
Abstract
AbstractHerein, we present a highly diastereoselective method to furnish acyclic 3‐amino‐1,5‐diol derivatives using a tandem double‐aldol‐Tishchenko protocol (dr up to >99 : 1) using a butanone derived sulfinylimine. In most cases only 1 diastereomer predominates, from a possible 16. The reaction is also regioselective. In addition, the highly challenging cyclobutanone and 3‐pentanone derivatives are also amenable to a double‐aldol‐Tishchenko reaction, although the dr values are modest. Despite that, clean single diastereomers can be isolated, which should prove very useful in medicinal chemistry and other areas. Detailed DFT calculations support the observed stereoselectivities in all cases, providing a rationale for the excellent dr values in the butanone series and the moderate values for the 3‐pentanone class.
Subject
General Chemistry,Catalysis,Organic Chemistry