Citation

Baxter GJ , Brown RFC McMullen GL (1974) Methyleneketenes and methylenecarbenes. IV. Pyrolysis of 5-Heteroarylmethylene-2,2-dimethyl-l,3-dioxan-4,6-diones to give phenolic benzothiophens, benzofurans and indoles. Australian Journal of Chemistry 27, 2605-2610.

https://doi.org/10.1071/CH9742605