Stereocontrolled construction of angularly functionalized trans-fused cycloheptanoids via α-hydroxycyclobutane rearrangement followed by retroaldol cleavage
摘要:
Acid-catalysed rearrangement of alpha-hyroxycyclobutane derivatives 3a-3c followed by retroaldol cleavage and oxidation in an one-pot operation furnished angularly carboxylated trans-fused cycloheptanoid compounds 5a-5c.