On pyrylium bonds

[1] BULOW, 1901, BER DTSCH CHEM GES, V34, P1189

[2] Decker H, 1907, LIEBIGS ANN CHEM, V356, P281

[3] KEHRMANN, 1906, BER, V39, P299

[4] VONBAEYER A, 1911, LIEBIGS ANN CHEM, V384, P208

[5] VONBAEYER A, 1915, LIEBIGS ANN CHEM, V407, P332

[6] VONBAEYER A, 1915, LIEBIGS ANN CHEM, V407, P354

[7] VONBAEYER A, 1910, BER, V43, P2337

[8] VONKOSTANECKI, BER, V29, P1493

[9] ANN CHEM, V302, P191

[10] 1914, BER, V47, P82

[1] BULOW, 1901, BER DTSCH CHEM GES, V34, P1189

[2] Decker H, 1907, LIEBIGS ANN CHEM, V356, P281

[3] KEHRMANN, 1906, BER, V39, P299

[4] VONBAEYER A, 1911, LIEBIGS ANN CHEM, V384, P208

[5] VONBAEYER A, 1915, LIEBIGS ANN CHEM, V407, P332

[6] VONBAEYER A, 1915, LIEBIGS ANN CHEM, V407, P354

[7] VONBAEYER A, 1910, BER, V43, P2337

[8] VONKOSTANECKI, BER, V29, P1493

[9] ANN CHEM, V302, P191

[10] 1914, BER, V47, P82