Nitration of abietic acid

Nitration of abietic acid was reported in 1904 [66]. Johansson [67] was the first to describe a crystalline nitro-derivative which he considered to be dinitro-abietic acid of the formula CI9H27(N02)2C00H, m.p. 178-184°C (see also [68]). Later reports by Dubourg [69], Goldblatt et al. [70] described the nitration in nitric acid (d = 1.42) in presence of acetic add to form dinitroabietic add C,8H2j(N02)2C00H of m.p. 171°C (yield 33%). 

A trinitroabietic acid, C15HI6(N02)3C00H, m. p. 156-158°C, was also obtained by Dubourg. He also prepared polynitroabietic add by nitration of abietic acid with hot anhydrous nitric add. 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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