Journal of the Chemical Society. Perkin transactions I p. 743 - 749 (1973)
Update date:2022-08-04
Topics:
Fallis, Alexander G.
Hearn, Milton T. W.
Jones, Ewart R. H.
Thaller, Viktor
Turner, John L.
The esters R[C≡C]2·CH2·CH= CH·[CH2]7·CO2Me{R=Me[CH 2]2, MeC≡C, cis- or trans-MeCH=CH, trans-HO·CH2·CH=CH, HO·CH 2·C≡C, cis- or trans-MeO2C·CH=CH, MeO2C·C≡C, (EtO)2CH, OHC, or H 2N·OC} were prepared from the Wittig salt Me 3Si·C=C·CH2·CH2· P+Ph3|- via |C≡C·CH2·CH= CH·[CH2]7·CO2Me; several were specifically labelled [at C(9), C(17), and C(18)]. The Wittig salt offers a general route to 1-ene-4,6-diyne and more highly unsaturated skipped en-yne systems.
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