Chinese Journal of Chemistry
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Recently Published Articles
- You have free access to this contentCover Picture: A Versatile Total Synthesis of 8-Oxyberberine and Oxohomoberberines (Chin. J. Chem. 11/2014) (page 1085)
Yun He, Yang Zheng, Li Hai and Yong Wu
Article first published online: 14 NOV 2014 | DOI: 10.1002/cjoc.201490024
The cover picture shows a new and expeditious approach for the synthesis of 8-oxyberberine and oxohomoberberines. Few general processes existed for the oxohomoberberine from the simple starting material. Reported methods generally required special reagents or complex procedures, and some are limited in scope. The total syntheses of 8-oxyberberine and oxohomoberberines were accomplished starting from commercially available 5-bromobenzo[d][1,3]dioxole, piperonal and sesamol. We have successfully presented a synthetic route for the synthesis of 8-oxyberberine 1a with high total yield of 43% from 5-bromobenzo[d][1,3]dioxole 2a in 7 steps. Meanwhile, we firstly described the synthesis of the oxohomoberberines 1b, 1c and 1d in a 46.2% overall yield (7 steps), a 22.9% overall yield (9 steps), and a 14% overall yield (6 steps), respectively. More details are discussed in the article by Wu et al. on page 1121–1127.
- Contents: Chin. J. Chem. 11/2014 (pages 1087–1092)
Article first published online: 14 NOV 2014 | DOI: 10.1002/cjoc.201490025
- Hydrocyanation of Unsaturated Imines Using Potassium Hexacyanoferrate(II) as a Cyanide Source
Zheng Li, Fei Wen and Jingya Yang
Article first published online: 7 NOV 2014 | DOI: 10.1002/cjoc.201400635
An efficient method for the hydrocyanation of unsaturated imines to synthesize β,γ-unsaturated α-aminonitriles by a one-pot two-step procedure using potassium hexacyanoferrate(II) as a cyanide source and benzoyl chloride as a promoter under catalyst-free condition is described.
- Copper-Catalyzed Cyanations of Aromatic Bromides with Benzoyl Cyanide
Liang Wang, Liang Pan, Qun Chen and Mingyang He
Article first published online: 7 NOV 2014 | DOI: 10.1002/cjoc.201400637
A practical copper-catalyzed cyanation of aryl bromides using benzoyl cyanide as the cyanation reagent is described.
- Carbon-bridged Tri(cyclopentadiene): Synthesis and Coordination with Ytterbium
Lin Sha, Li Li and Fugen Yuan
Article first published online: 7 NOV 2014 | DOI: 10.1002/cjoc.201400598
Compound of two-cyclohexylidene-bridged tri(cyclopentadiene) was synthesized, and its ytterbium complex was structurally characterized.