✍ Scribed by E. J. BUSH; D. W. JONES
No coin nor oath required. For personal study only.
Control of Stereochemistry in an Intramolecular Diels-Alder Reaction by the Phenylsulfonyl Group: An Improved Synthesis of Pisiferol. -An improved approach to the known intermediate (VII) of the pisiferol synthesis is established by use of the title group in the intramolecular Diels-Alder reaction leading to the major product (VI). Without the phenylsulfonyl group the corresponding desired product is formed as minor isomer in such a reaction. -(BUSH, E.
📜 SIMILAR VOLUMES
A Concise Total Synthesis of (±)-Bakkenolide A by Means of an Intramolecular Diels-Alder Reaction. -In addition to bakkenolide A (IV), the epimers (V)-(VII) are obtained. -(BACK, THOMAS G.; PAYNE,
Trifluoromethanesulfonic Acid, an Efficient Catalyst for the Hetero Diels-Alder Reaction and an Improved Synthesis of Mefrosol. -The hetero Diels-Alder reaction between unactivated dienes with alkyl groups in the 2-position (cf. isoprene (II)) and aromatic aldehydes is effectively promoted by catal