Beilstein J. Org. Chem.2010,6, No. 72, doi:10.3762/bjoc.6.72
sulfur, followed by stirring for 5 min at −78 °C, and the addition of freshly distilled acetyl chloride furnished the desired (oligo)phenothiazinyl thioacetates 2 and 4 in moderate to good yields (Scheme 1). However, in the case of dyad 1c thiolation was only accomplished by addition of acetylsulfur
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Graphical Abstract
Scheme 1:
Synthesis of (oligo)phenothiazinyl thioacetates 2 and 4.