Simple and stereoselective synthetic route to (E)-1-alkenyl sulfoxides via terminal alkynes
Terminal alkynes 1 react with Cp2Zr(H)Cl (Cp = η5-C5H5) to give organozirconium (IV) complexes 2, which are trapped with sulfuryl chloride to afford (E)-1-alkenyl sulfoxides 3.
Zhong,Guo,Huang
p. 588 - 589
(2007/10/03)
THE REACTION OF ALKYL PHENYL SULPHIDES WITH MANGANESE DIOXIDE AND ACETYL CHLORIDE
In a one-pot reaction, manganese dioxide in stoichiometric amounts and acetyl chloride transform alkyl phenyl sulphides into the corresponding 1-alkenyl phenyl sulphides; these latter products can be undergo chlorination of the double bond promoted by the
Additive Pummerer Rearrangements. Asymmetric Synthesis of (-)-Methyl Jasmonate
Examples of mild, additive Pummerer rearrangements are given; one example involves asymmetric carbon-carbon bond formation as the key step for synthesis of (-)-methyl jasmonate.
Posner, Gary H.,Asirvatham, Edward,Ali, Syed F.
p. 542 - 543
(2007/10/02)
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