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[摘要]:It has been established that a cationic Rh(I)/(R)-H-8-BINAP complex catalyzes the one-pot intermolecular [2 + 2 + 2] trimerization/asymmetric intramolecular [4 + 2] cycloaddition of two aryl ethynyl ethers and 5-alkynals to produce annulated 1,4-cyclohexadienes possessing two stereogenic centers. |
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