摘要:
Aromatic enediynes (1) bearing a triggering device on the terminal acetylene carbon undergo thermal cyclization at 25 degrees C to yield polyphenylene ring systems (6, 9, 13, and 15(16)) giving radical intermediates, dehydrobenzene monoradical (12) and didehydrobenzene biradicals (4 and 14) which may serve as a DNA-cleaving reagent. (C) 1998 Elsevier Science Ltd. All rights reserved.