Preparation, Structure, and Reactivity of Thioxo and Imino Derivatives of the Triolide (and Pentolide) from (<i>R</i>)-3-Hydroxybutanoic Acid
作者:Andreas Brunner、Florian N. M. Kühnle、Dieter Seebach
DOI:10.1002/hlca.19960790202
日期:1996.3.20
Reaction of the triolide 1 from (R)-3-hydroxybutanoicacid with Lawesson's reagent 5 leads to the mono-, di-, and trithio derivatives 6–8 which can be isolated in pure form (20–40% yields), and which have crystal structures very similar to the parent triolide 1 (Fig. 1). Similarly, pentolide 3 is converted to mixtures of various thio derivatives, three of which are separated (10–12) by HPLC and fully