摘要:
9-(2-Phenylethyl)aminoanthracene has been prepared and used as a template in the Diels-Alder/retro-Diels-Alder sequence to produce alpha,beta-butenolides and alpha,beta-unsaturated lactams. In this sequence the aminoanthracene serves as a stereo- and regiocontrolling chaperone in guiding maleic anhydride or N-alkylmaleimides through transformations to the butenolide or lactam targets. (c) 2005 Elsevier Ltd. All rights reserved.