Synthesis of diterpenoid indole derivatives via tethered chromium alkynylaminocarbenes
PD Woodgate, HS Sutherland
Index: Woodgate, Paul D.; Sutherland, Hamish S. Journal of Organometallic Chemistry, 2001 , vol. 629, # 1-2 p. 131 - 144
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Citation Number: 10
Abstract
Podocarpane-tethered chromiumalkynylaminocarbene complexes were synthesised by reaction of a 13-acetyloxycarbene with 2-alkynylaniline derivatives. Thermolysis of isolated alkynylaminocarbenes gave 13-indolylpodocarpane derivatives in moderate yields, while heating of the (arylalkynyl)aminocarbenes without isolation gave more than one heterocyclic product. Ester derivatives were formed by trapping the intermediate ketene with butan-l-ol.
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