Aromatic propen bonds.

[1] HOOGEWERFF, 1887, REC TRAV CHIM, V6, P373

[2] HORING, 1897, THESIS ROSTOCK

[3] 1895, BER DTSCH CHEM GES, V28, P2713

[4] 1896, BER DTSCH CHEM GES, V29, P682

[5] 1902, BER DTSCH CHEM GES, V35, P45

[6] 1896, BER DTSCH CHEM GES, V29, P616

[7] COMPT REND, V130, P1322

[8] ANN CHEM, V172, P131

[9] 1902, BER DTSCH CHEM GES, V35, P22

[1] HOOGEWERFF, 1887, REC TRAV CHIM, V6, P373

[2] HORING, 1897, THESIS ROSTOCK

[3] 1895, BER DTSCH CHEM GES, V28, P2713

[4] 1896, BER DTSCH CHEM GES, V29, P682

[5] 1902, BER DTSCH CHEM GES, V35, P45

[6] 1896, BER DTSCH CHEM GES, V29, P616

[7] COMPT REND, V130, P1322

[8] ANN CHEM, V172, P131

[9] 1902, BER DTSCH CHEM GES, V35, P22