
%0 Journal Article
%A Brown, RFC 
%A McMullen, GL 
%T Methyleneketenes and methylenecarbenes. II. A new phenolic ring synthesis: 2-Naphthol from o-tolualdehyde
%J Australian Journal of Chemistry
%D 1974/11/01
%V 27
%N 11
%P 2385-2391
%K 
%R https://doi.org/10.1071/CH9742385
%U https://www.publish.csiro.au/paper/CH9742385 
%X Flash vacuum pyrolysis of 2,2-dimethyl-5-(2?-methylbenzylidene)-1,3- dioxan-4,6-dione (1) at 420-620? gives 2-naphthol in 95-100% yield. The reaction probably involves an intermediate 2- methylbenzylideneketene, which undergoes consecutive [1,5] hydrogen migration and cyclization reactions. Substituted 2-naphthols and a phenol (biphenyl-3-ol) have been synthesized in a similar way. 
