Synthesis of 1,2-Bis(2-aryl -1H-indol-3-yl)ethynes via 5-Exo-digonal Double Cyclization Reactions of 1,4-Bis(2-isocyanophenyl)buta-1,3-diyne with Aryl Grignard Reagents

Rino Ishikawa, Ryosuke Iwasawa Yuichiro Takiyama Tomokazu Yamauchi, Tetsuo Iwanaga, Makoto Takezaki, Motonori Watanabe, Naozumi Teramoto, Toshiaki Shimasaki, and Mitsuhiro Shibata

Synthesis of 1,2-Bis(2-aryl -1H-indol-3-yl)ethynes via 5-Exo-digonal Double Cyclization Reactions of 1,4-Bis(2-isocyanophenyl)buta-1,3-diyne with Aryl Grignard Reagents

J. Org. Chem.

ACS

82

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663