Intramolecular Diels-Alder Reaction of Furans with Allenyl Ethers Followed by Phenylthio and Trialkylsilyl Groups Rearrangement
摘要:
AbstractA new reaction involving an intramolecular Diels‐Alder reaction of a furan diene with an allenyl ether dienophile followed by phenylthio group rearrangement was discovered. Treatment of the propargyl ethers 2a‐c with t‐BuOK in t‐BuOH at 85 ° C gave the phenylthio group rearrangement products 5a‐c and 6a‐c. A reaction involving an intramolecular Diels‐Alder reaction of a furan diene with an allenyl ether dienophile followed by trialkylsilyl group rearrangement is also demonstrated.
Intramolecular Diels-Alder reaction of furans with allenyl ethers followed by trimethylsilyl group 1,2-rearrangement and Brook rearrangement
作者:Hsien-Jen Wu、Chia-Hui Yen、Chi-Te Chuang
DOI:10.1016/0040-4039(96)01686-3
日期:1996.10
The base-catalyzed intramolecularDiels-Alderreactions of 5-trimethylsilyl-2-furfuryl propargyl ethers 1a-1f gave compounds 2a-2f and 3a-3f in 70–90% yields respectively, a novel reaction involving an intramolecularDiels-Alderreactionfollowed by a trimethylsilyl group 1,2-rearrangement and Brook rearrangement.
Intramolecular Diels-Alder Reaction of Furans with Allenyl Ethers Followed by Phenylthio and Trialkylsilyl Groups Rearrangement
作者:Chi-Te Chuang、Chia-Hui Yen、Hsien-Jen Wu
DOI:10.1002/jccs.199800119
日期:1998.12
AbstractA new reaction involving an intramolecular Diels‐Alder reaction of a furan diene with an allenyl ether dienophile followed by phenylthio group rearrangement was discovered. Treatment of the propargyl ethers 2a‐c with t‐BuOK in t‐BuOH at 85 ° C gave the phenylthio group rearrangement products 5a‐c and 6a‐c. A reaction involving an intramolecular Diels‐Alder reaction of a furan diene with an allenyl ether dienophile followed by trialkylsilyl group rearrangement is also demonstrated.