Highlights from the Synthesis of Gibberellins:
Highlights from the Synthesis of Gibberellins:
Highlights from the Synthesis of Gibberellins:
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49-cd-ring summary.cdx 2/5/04 3:58 PM<br />
A Summary <strong>of</strong> General C/D Ring Strategies<br />
H H<br />
I) Reductive Ring Closure<br />
II) Alkylation / Acylation<br />
III) Aldol<br />
IV) Carbenoid<br />
OH<br />
V) Rearrangement / Fragmentation<br />
H<br />
OH<br />
O<br />
"The problem <strong>of</strong> <strong>the</strong> syn<strong>the</strong>sis<br />
<strong>of</strong> gibberellic acid has provided <strong>the</strong> impetus for<br />
<strong>the</strong> development <strong>of</strong> many<br />
new syn<strong>the</strong>tic methods . . . " Corey
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