4.4 Article

Asymmetric, Organocatalytic Bromolactonization of Allenoic Acids

Journal

SYNLETT
Volume 25, Issue 12, Pages 1701-1704

Publisher

GEORG THIEME VERLAG KG
DOI: 10.1055/s-0034-1378278

Keywords

allenes; asymmetric synthesis; cyclization; electrophilic addition; halogenation

Funding

  1. WWU Munster
  2. Fonds der Chemischen Industrie
  3. DFG [HE 6020/2-1]

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Asymmetric, reagent-controlled bromolactonizations of allenoic acids have been achieved by using (DHQD)(2)PHAL as catalyst. A range of substrates can be cyclized in good yields and moderate to good enantioselectivities under operationally simple conditions.

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