3-Vinyl-2,5-dihydrothiophene 1,1-dioxide: a novel, easily accessible, high-yielding precursor to [3]dendralene, the simplest representative of the diene-transmissive polyenes
Practical Synthesis and Reactivity of [3]Dendralene
作者:Tanya A. Bradford、Alan D. Payne、Anthony C. Willis、Michael N. Paddon-Row、Michael S. Sherburn
DOI:10.1021/jo9024557
日期:2010.1.15
simplest branched triene, [3]dendralene, has been devised. The synthesis is robust and operationally simple, requiring no chromatography and involving no protecting groups or specialized equipment, allowing the synthesis of the volatile hydrocarbon in pure, solvent free form on a multigram scale. The stability, dimerization when stored neat, and Diels−Alder reactivity of [3]dendralene―including double cycloaddition
Cross-Coupling for Cross-Conjugation: Practical Synthesis and Diels−Alder Reactions of [3]Dendralenes
作者:Tanya A. Bradford、Alan D. Payne、Anthony C. Willis、Michael N. Paddon-Row、Michael S. Sherburn
DOI:10.1021/ol7021998
日期:2007.11.1
through cross-coupling reactions. Contrary to some earlier reports, [3]dendralene is sufficiently stable to be handled using standard synthetic methods. These compounds allow the one-step stereoselective construction of polycyclic frameworks through reactions with dienophiles. Site selectivity and stereoselectivity in Diels-Alderreactions with dienophiles are generally not influenced by the nature of the
Synthesis and Applications of Tricarbonyliron Complexes of Dendralenes
作者:Henry Toombs-Ruane、Nik Osinski、Thomas Fallon、Cindy Wills、Anthony C. Willis、Michael N. Paddon-Row、Michael S. Sherburn
DOI:10.1002/asia.201100455
日期:2011.12.2
[3]Dendralene and [4]dendralene are converted smoothly into tricarbonyliron complexes. The structures of four complexes analyzed by DFT and single‐crystal X‐ray analysis show that, in contrast to free hydrocarbons, complexed dendralenes prefer a roughly in‐plane conformation. The complexes are stable towards Fe(CO)3 group migration up to 150 °C. The synthetic value of Fe(CO)3 complexation in the dendralene
On the Diels–Alder dimerisation of cross-conjugated trienes
作者:Henry Toombs-Ruane、Emma L. Pearson、Michael N. Paddon-Row、Michael S. Sherburn
DOI:10.1039/c2cc32520a
日期:——
The first general synthesis of 1-substituted [3]dendralenes has led to the discovery that conjugating groups significantly enhance the rate of Diels-Alder dimerisation relative to both the parent [3]dendralene and to other substituted systems.
Domino Cycloaddition Organocascades of Dendralenes
作者:Nicholas J. Green、Andrew L. Lawrence、Gomotsang Bojase、Anthony C. Willis、Michael N. Paddon-Row、Michael S. Sherburn
DOI:10.1002/anie.201302185
日期:2013.8.5
Hooray Horeau! Highly enantioselective organocatalyzed Diels–Alder reaction cascades are disclosed for the first time. The reaction enables the efficient and rapid construction of enantiopure polycycles from simple achiral, acyclic polyenes.