Two regiocomplementary approaches to angular furanocoumarins with chromium carbene complexes: synthesis of sphondin, thiosphondin, heratomin, and angelicin
WD Wulff, JS McCallum, FA Kunng
Index: Wulff, William D.; McCallum, J. Stuart; Kunng, Fen-Ann Journal of the American Chemical Society, 1988 , vol. 110, # 22 p. 7419 - 7434
Full Text: HTML
Citation Number: 95
Abstract
Abstract: Two regiocomplementary syntheses of the angular furanmumarin sphondin are described utilizing the benzannulation reaction of furylcarbene complexes of chromium. The high regioselectivity of an intermolecular synthesis employing the reaction of [(2- furyl)(methoxy) methylene] pentacarbonylchromium (8) and methyl 4-pentynoate is thought to be controlled by the preferred conformation of an aikyne-carbene complex intermediate. ...
Related Articles:
[Sardari, Soroush; Mori, Yoki; Horita, Kiyoshi; Micetich, Ronald G.; Nishibe, Sansei; Daneshtalab, Mohsen Bioorganic and Medicinal Chemistry, 1999 , vol. 7, # 9 p. 1933 - 1940]
[Sardari, Soroush; Mori, Yoki; Horita, Kiyoshi; Micetich, Ronald G.; Nishibe, Sansei; Daneshtalab, Mohsen Bioorganic and Medicinal Chemistry, 1999 , vol. 7, # 9 p. 1933 - 1940]