Convergent Route to the Spirohexenolide Macrocycle
摘要:
Using key functional dissections, the synthesis of spirohezenolides is examined through a three-component strategy that features a 1,2-addition to couple tetronate and aldehyde components forming the C2-C3 bond and a Stille coupling to install the third sulfone-containing component The macrocycle is completed by an intramolecular Julia-Kocienski reaction to form the C10-C11 trans-disubstituted olefin. Application of this strategy is described in progress toward the synthesis of (+/-)-spirohexenolide B.
Convergent Route to the Spirohexenolide Macrocycle
摘要:
Using key functional dissections, the synthesis of spirohezenolides is examined through a three-component strategy that features a 1,2-addition to couple tetronate and aldehyde components forming the C2-C3 bond and a Stille coupling to install the third sulfone-containing component The macrocycle is completed by an intramolecular Julia-Kocienski reaction to form the C10-C11 trans-disubstituted olefin. Application of this strategy is described in progress toward the synthesis of (+/-)-spirohexenolide B.