Towards the synthesis of Paulitin: New insights into the enyne-metathesis mechanism
In our approach towards Paulitin, a sesquiterpene lactone, we have shown that steric hindrance at the propargylic position is of importance to the outcome of enyne metathesis. Moreover, we have uncovered further evidence to confirm that the alkyne-first p
Enantioselective Diels-Alder cycloadditions with (SS)-2-(p- tolylsulfinyl)-1,4-naphthoquinone: Efficient kinetic resolution of chiral racemic vinylcyclohexenes
Chiral racemic vinylcyclohexenes 1a-m, bearing allylic and nonallylic oxygenated substituents on the cyclohexene ring, were submitted to Diels- Alder reactions with enantiomerically pure (SS)-(2-p-tolylsulfinyl)-1,4- naphthoquinone. The tandem cycloadditi
Carreno, M. Carmen,Urbano, Antonio,Di Vitta, Claudio
p. 8320 - 8330
(2007/10/03)
Diastereoselective Synthesis of the GH Ring Part of Ciguatoxin
Substrate-controlled stereoselective synthesis of the GH ring part of ciguatoxin 1 was achieved.
Atsuta, Hiroyuki,Fujiwara, Kenshu,Murai, Akio
p. 307 - 309
(2007/10/03)
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