95110-52-4Relevant academic research and scientific papers
α,β-Epoxy Sulfoxides as Useful Intermediates in Organic Synthesis. X. An Improved Synthesis of α,β-Unsaturated Carbonyl Compounds from Carbonyl Compounds with Carbon Homologation through α,β-Epoxy Sulfoxides
Satoh, Tsuyoshi,Itoh, Masayuki,Ohara, Teruhiko,Yamakawa, Koji
, p. 1839 - 1846 (2007/10/02)
Treatment of the α,β-epoxy sulfoxides derived from ketones and chloromethyl phenyl sulfoxide or 1-chloroalkyl phenyl sulfoxides with lithium perchlorate in the presence of tributylphosphine oxide in toluene at 110 deg C for about 1-3 h gave α,β-unsaturated aldehydes or α,β-unsaturated ketones in high yields.In contrast to these results, the α,β-epoxy sulfoxides derived from aldehydes did not give the desired α,β-unsaturated ketones.In this case, a sequential treatment of the α,β-epoxy sulfoxides with benzenethiolate and m-chloroperbenzoic acid afforded α-phenylsulfinylated ketones, which were heated in toluene at 110 deg C to give the desired enones in good overall yields.The oxidation of the α,β-unsaturated aldehydes obtained by this method gave α,β-unsaturated carboxylic acids in high yields.These procedures afforded a new method for the synthesis of α,β-unsaturated carbonyl compounds, including α,β-unsaturated esters, from carbonyl compounds with carbon homologation.
α,β-Epoxy Sulfoxides as Useful Intermediates in Organic Synthesis. II. A Novel Synthesis of α-Sulfenylated Ketones and α-Sulfenylated Aldehydes from α,β-Epoxy Sulfoxides
Satoh, Tsuyoshi,Kumagawa, Takumi,Yamakawa, Koji
, p. 2849 - 2854 (2007/10/02)
Treatment of α,β-epoxy sulfoxides, prepared from 1-chloroalkyl phenyl sulfoxides and carbonyl compounds, with various kinds of alkane- or arenethiolates afforded α-sulfenylated ketones in good yields.This method also offered a novel procedure for a synthe
