
TY  - JOUR
A1  - Baxter, GJ 
A1  - Brown, RFC 
A1  - McMullen, GL 
T1  - Methyleneketenes and methylenecarbenes. IV. Pyrolysis of 5-Heteroarylmethylene-2,2-dimethyl-l,3-dioxan-4,6-diones to give phenolic benzothiophens, benzofurans and indoles
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1974
VL  - 27
IS  - 12
SP  - 2605
EP  - 2610
KW  - 
UR  - https://doi.org/10.1071/CH9742605 
N2  - The synthetic sequence leading from o-tolualdehyde to 2-naphthol1 has been applied to seven five membered heterocyclic aldehydes bearing adjacent methyl substituents. Flash vacuum pyrolysis of the corresponding 5-heteroarylmethylene-2,2-dimethyl-1,3-dioxan-4,6-diones gave hydroxy derivatives of the benzologous systems benzothiophene, benzofuran, dibenzofuran, indole and carbazole in 54-98% yield. 
ER  -

