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Front Cover: CO Gas‐free Intramolecular Cyclocarbonylation Reactions of Haloarenes Having a C‐Nucleophile through CO‐Relay between Rhodium and Palladium (Chem. Asian J. 4/2020)
Author(s) -
Morimoto Tsumoru,
Yamashita Mana,
Tomiie Ai,
Tanimoto Hiroki,
Kakiuchi Kiyomi
Publication year - 2020
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201901786
Subject(s) - carbonylation , rhodium , decarbonylation , palladium , carbon monoxide , chemistry , intramolecular force , nucleophile , catalysis , photochemistry , organic chemistry
15 years have gone by since the first report on transfer carbonylation, which avoids the direct use of carbon monoxide. Subsequently, this field has attracted considerable attention, especially over the past five years carbon monoxide substitutes, such as aldehydes and formates, have been widely used for in situ and ex situ generation of CO. This paper describes the verification of a new strategy involving two discrete transition metals, rhodium and palladium, which catalyze the decarbonylation of aldehyde and the subsequent carbonylation of bromoarenes, respectively. The dual catalysis involves the CO‐relay between the first runner (Rh) and the second runner (Pd) as if a baton. More information can be found in the Communication by Tsumoru Morimoto et al. on page 473 in Issue 4, 2020 (DOI: 10.1002/asia.201901595).