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Paper | Regular issue | Vol 65, No. 11, 2005, pp.2667-2674
Published online, 19th August, 2005
DOI: 10.3987/COM-05-10504
New Synthesis of t-Butyl 1,2-Dihydro-1-oxaazulene-3-carboxylates Using Lithium Trimethylsilyldiazomethane

Susumu Tsuchida, Yoshiyuki Hari, and Toyohiko Aoyama*

*Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan


Lithium trimethylsilyldiazomethane reacts with t-butyl aryloxypyruvates to give t-butyl 1,2-dihydro-1-oxaazulene-3-carboxylates via alkylidenecarbene intermediates.