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Report | Regular issue | Vol 23, No. 1, 1985, pp.81-92
Published online, 1st January, 1970
DOI: 10.3987/R-1985-01-0081
Studies on Claisen Rearrangement of Bis-propargyl Ethers. Synthesis of Naphthodipyrans, Naphthodifurans and Naphthofuropyrans

Bindumadhavan Venugopalan and Kalpattu Kuppuswamy Balasubramanian*

*Department of Chemistry, Indian Institute of Technology, Madras, 600 036, India


The Claisen Rearrangement of bis-propargyl ethers of naphthalenes yields naphthodipyrans when refluxed in N,N-diethylaniline and naphthodifurans in HMPT in the presence of sodium bicarbonate.