97 6 2 6 hna 2 4 2 3 hna by g c analysis of the material after silylation with n n bis trimethylsilyl acetamide the melting point was about 240 u00b0 248 u00b0 c further acidification of the filtrate to ph 2 0 with 1m h 2 so 4 gave 1 4 g 3 of a yellow solid which was 86 3 2 3 hna 13 7 2 6 hna by g c analysis the combined organic phases were extracted with 5 naoh 3 u00d7 100 ml and the combined aqueous extracts acidified to a ph less than 2 by addition of 3m hcl filtration a water wash and drying gave 21 90 g 61 of recovered 2 naphthol variations from the example 8 procedure such as the amount of potassium carbonate the solvent time of reaction and pressure are shown in table i table i__________________________________________________________________________2 6 hna production using potassium cation prior art selectivity special conver 2 6 hna no conditions solvent time temp press sion 2 3 hna __________________________________________________________________________1 10 k sub 2 co sub 3 ipn sup 1 6 h 260 u00b0 c 42 psi 46 37 13 2 50 k sub 2 co sub 3 ipn sup 1 6 h 265 u00b0 c 45 psi 38 58 13 3 10 k sub 2 co sub 3 ipn sup 1 8 h 265 u00b0 c 45 psi 39 56 18 4 50 k sub 2 co sub 3 kero 6 h 265 u00b0 c 45 psi 28 57 14 sene5 50 k sub 2 co sub 3 kero 6 h 265 u00b0 c 45 psi 32 56 12 sene6 10 k sub 2 co sub.