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Search for "furans" in Full Text gives 103 result(s) in Beilstein Journal of Organic Chemistry.

A review of new developments in the Friedel–Crafts alkylation – From green chemistry to asymmetric catalysis

  • Magnus Rueping and
  • Boris J. Nachtsheim

Beilstein J. Org. Chem. 2010, 6, No. 6, doi:10.3762/bjoc.6.6

Graphical Abstract
  • and with good ortho/para selectivity. Although different arenes and heteroarenes, including thiophene can be efficiently alkylated, furans did not result in the desired products. In addition to styrene, dihydronaphthalene and α-methylstyrene could be used as electrophiles. In the latter case, the
  • indoles, thiophenes, pyrroles or furans gave the desired anti-1,1,2-triarylalkanes 110 in good yields and with high diastereoselectivities (Scheme 40B). BF3•OEt2 and TFA were used in stoichiometric amounts to promote this reaction. However, application of BF3 resulted in significantly higher reactivity
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Review
Published 20 Jan 2010

End game strategies towards the total synthesis of vibsanin E, 3-hydroxyvibsanin E, furanovibsanin A, and 3-O-methylfuranovibsanin A

  • Brett D. Schwartz,
  • Craig M. Williams and
  • Paul V. Bernhardt

Beilstein J. Org. Chem. 2008, 4, No. 34, doi:10.3762/bjoc.4.34

Graphical Abstract
  • methylated furans using catalytic amounts of mercury triflate. Although verification of this protocol was undertaken on a cycloheptanone derivative, substrate 39 failed to give the desired furan 42 (Scheme 6). Instead, hydration was observed as the major reaction pathway (i.e. 40) with furan 41 being
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Full Research Paper
Published 08 Oct 2008

Trapping evidence for the thermal cyclization of di-(o-acetylphenyl)acetylene to 3,3'-dimethyl- 1,1'-biisobenzofuran

  • Charles P. Casey,
  • Neil A. Strotman and
  • Ilia A. Guzei

Beilstein J. Org. Chem. 2005, 1, No. 18, doi:10.1186/1860-5397-1-18

Graphical Abstract
  • electrocyclic ring closures to furans.[9][17][18] Related ring closures of o-acyl phenylcarbenes to isobenzofurans have been reported (Scheme 9).[19][20][21] These carbenes were formed as transient intermediates by photolytic or chemical cleavage of diazo or diazirine compounds. Isobenzofurans formed in this
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Preliminary Communication
Published 09 Dec 2005
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