- Allenyl Allylic Ethers: Synthesis and Thermal Rearrangements
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Application of the sequence halogenation/dehydrohalogenation/isomerization to alkenes 1a-g affords allenyl allylic ethers 5a-g.Thermal isomerizations of 5a,d,e proceed by Claisen rearrangement, while 5b,c,f,g are transformed by alternate modes of c
- Dulcere, Jean-Pierre,Crandall, Jack,Faure, Robert,Santelli, Maurice,Agati, Valerie,Mihoubi, Mohamed N.
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p. 5702 - 5708
(2007/10/02)
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- A New Synthetic Route to β-Bromoprop-2-ynyl Mixed Acetals and Bromovinyl Bis-allyl Mixed Acetals, Precursors of α-Methylene-γ-Butyrolactones
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Cohalogenation by N-bromosuccinimide in methanol of β-bromoallenyl ethers (3a-g) or allyl allenyl ethers (8d-f) affords unsaturated halogeno-compounds (5a-g) or (9d-f) which are converted via homolytic carbocyclization into α-methylene-γ-butyrolactones (7a-g).
- Dulcere, J. P.,Mihoubi, M. N.,Rodriguez, J.
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p. 237 - 239
(2007/10/02)
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