Abstract:Como uma extensão de nosso trabalho em anelações intramoleculares via anions derivados de sililoxiciclopropanos, investigamos a química dos sistemas ciclopentilciclopropanos 6-9, em um esforco visando a preparação de hidrindenonas estereoespecificamente funcionalizadas. As ciclizações intramoleculares de anions derivados do ciclopropano foram menos estereosseletivas e mais complicadas do que aquelas com o corresponente sitema cicloexila. Entretanto, rendimentos modestos de hidrindenonas, tais como 20 e 21, for… Show more
“…They were formed during this cascade process by intramolecular reaction of the ester enolate with the alkenyl sulfone moiety controlling the regioselectivity. The stereoselectivity of the process depends on substituent R 87 …”
Section: Combined Cleavage and Transformation To
Advanced Products Se...mentioning
“…They were formed during this cascade process by intramolecular reaction of the ester enolate with the alkenyl sulfone moiety controlling the regioselectivity. The stereoselectivity of the process depends on substituent R 87 …”
Section: Combined Cleavage and Transformation To
Advanced Products Se...mentioning
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