Imino Diels-Alder Reactions: Efficient Synthesis of Pyrano- and Furanoquinolines Catalyzed by 4-Nitrophthalic Acid
摘要:
4-Nitrophthalic acid was found to be an effective catalyst for the imino Diels-Alder reaction of N-benzylideneanilines with 3,4-dihydro-2H-pyran and 2,3-dihydrofuran to afford pyrano- and furanoquinolines in good yields. It was also found that aryl amines react smoothly with 3,4-dihydro-2H-pyran and 2,3-dihydrofuran under the same condition to afford the corresponding pyrano- and furanoquinolines in high yields. This catalyst is inexpensive, easily available, water soluble, and stable to aqueous reaction conditions.
Methods for synthesizing heterocycles and therapeutic use of the heterocycles for cancers
申请人:——
公开号:US20030149069A1
公开(公告)日:2003-08-07
The present invention provides methods for synthesizing novel tetrahydroquinoline derivatives that are useful for cancer chemotherapy and anti-viral applications. The present invention provides compounds useful for cancer chemotherapy and methods for the preparation of these compounds. The present invention also includes cancer chemotherapy methods.