Australian blackwood

Other quinones from Australian blackwood, Acacia mela-noxylon (Fabaceae), are also capable of inducing allergenic reactions. Among these are 2,6-dimethoxybenzoquinone see section above on plant-plant interactions) and 2-methyl-6-methoxyfuranobenzoquinone (34) (Fig. 6.6). 2,6-Dimethoxybenzoquinone (30) also is found in the wood of Bowdichia nitida (Fabaceae) (Leistner, 1985) and in Ama-ranthus palmeri (Amaranthaceae), where it is responsible for allelopathic effects (Fischer and Quijano, 1985). 

Tilsley DA (1990) Australian blackwood dermatitis. Contact Dermatitis 23 40-41... 

Hausen BM, Schmalle H 1981 The sensitizing capacity of naturally occurring quinones. Part VI. Quinonoid constituents as contact sensitisers in Australian blackwood Acacia melanoxylon R. Br.). Brit J Ind Med 38 105-109... 

Blackwood and McCarthy showed that the fixed-bed differential reaction rate of hydrogen and carbon—coconut and wood chars as well as a char of Australian brown coal—tends to zero at the graphite equilibrium. This observation may not be relevant to the over-all kinetic situation when carbon is gasified by steam in a fluidized bed, in which... 

---