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Cover Picture: Cobalt‐Porphyrin‐Catalyzed Intramolecular Buchner Reaction and Arene Cyclopropanation of In Situ Generated Alkyl Diazomethanes (Adv. Synth. Catal. 13/2017)
Author(s) -
Wang Haixu,
Zhou CongYing,
Che ChiMing
Publication year - 2017
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201700754
Subject(s) - cyclopropanation , chemistry , cyclopropane , intramolecular force , porphyrin , cycloheptatriene , alkyl , cobalt , catalysis , medicinal chemistry , stereochemistry , photochemistry , organic chemistry , ring (chemistry)
The inside cover picture , provided by Haixu Wang, Cong‐Ying Zhou, and Chi‐Ming Che, illustrates the cobalt‐catalyzed conversion of N ‐tosylhydrazones to cycloheptatriene fused pyrrolidines and cyclopropane fused pyrrolidines. With Co(II)‐porphyrin as catalyst, alkyl diazomethanes generated in situ from N ‐tosylhydrazones underwent intramolecular Buchner reaction and arene cyclopropanation in highly chemo‐ and regio‐selective manner. The obtained cyclopropane fused pyrrolidines can be readily converted to other nitrogen heterocycles with potential synthetic and biological interests. Details of this work can be found in the communication on pages 2253–2258 (H. Wang, C.‐Y. Zhou, C.‐M. Che, Adv. Synth. Catal . 2017 , 359 , 2253–2258; DOI: 10.1002/adsc.201700205).