By the treatment of Δ6-6-hydroxy-5βH-dehydroabietic acid (18–6)-lactone with potassium hydrogensulfate or conc. sulfuric acid, the B ring aromatization and the C1–C10 bond cleavage occurred to give 1,10-secoabietane derivatives possessing coleon A skeleton.
A newroute to 15-hydroxydehydroabietic acid derivatives from abietic acid (11), via abieta-8,13(15)-dien-18-oic acid (12), is reported. Utilizing this, the first synthesis of bioactive terpenes 3, 6, 9 and 10, as well as natural diol 4 and lactones 7–8 was achieved.
Synthesis and structural characterisation of ring B oxidised derivatives of dehydroabietic acid
作者:Silvia M. C. S. Monteiro、Armando J. D. Silvestre、Artur M. S. Silva、Jose′ A. S. Cavaleiro、Vitor Fe′lix、Michael G. B. Drew
DOI:10.1039/b103737b
日期:——
The synthesis and structural characterisation of some new derivatives of dehydroabietic acid, oxidised in the 6 and 7 positions of ring B, are described. Other known derivatives were exhaustively characterised for the first time and the previous NMR assignments for three compounds are corrected.
A New Synthetic Route Towards Picealactone a from an Abietic Acid
作者:Shengliang Liao、Minggui Shen、Jie Song、Shibin Shang、Xiaoping Rao、Zhanqian Song
DOI:10.1007/s10600-017-2084-2
日期:2017.7
A new syntheticroute towards picealactone A from an abietic acid, dehydroabietic acid, was introduced in this study. In this syntheticroute, the picealactone A was synthesized by a tandem oxide/intramolecular esterification of 7-carbonyl dehydroabietic acid catalyzed by Yb(OTf)3.
本研究介绍了一种从松香酸脱氢松香酸合成 picealactone A 的新途径。在该合成路线中,通过 Yb(OTf)3 催化的 7-羰基脱氢松香酸的串联氧化物/分子内酯化反应合成 picealactone A。