Dalton Transactions
Communication
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Acknowledgements
This work was financially supported by the National Natural
Science Foundation of China (grant no. 21331002, 21671097
and 21201111) and the National Basic Research Program of
China (grant no. 2017YFA0303500). This work was also
supported by a project funded by the Priority Academic Program
Development of Jiangsu Higher Education Institutions.
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Notes and references
‡General procedure for the catalysed aza-Diels–Alder reaction in acetonitrile:
N-benzylideneaniline (0.2 mmol) and the imidazolinium salt catalyst
(0.02 mmol, 10 mol%) were placed into a Schlenk flask under nitrogen. The reac-
tion mixture was dissolved in dry acetonitrile (2 ml) and Danishefsky’s diene
(0.2 mmol) was added. After 18 h of stirring at room temperature, the mixture
was distilled off under reduced pressure. TLC (PE–EtOAc, 1 : 2) gave the desired
product.
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