Journal
JOURNAL OF HETEROCYCLIC CHEMISTRY
Volume 52, Issue 2, Pages 322-329Publisher
WILEY
DOI: 10.1002/jhet.1952
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Funding
- National Natural Science Foundation of China [21072110]
- Natural Science Foundation of Shandong Province [ZR2010BM007, ZR2012BM003]
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An efficient and straightforward five-component cascade protocol has been developed to synthesize the highly substituted dispiroindenoquinoxaline pyrrolidine derivatives from ninhydrin, 1,2-phenylenediamine, sarcosine, 1,3-indanedione, and aldehydes via cascade reactions under mild conditions, in which 1,3-dipole azomethine ylide and the dipolarophile were simultaneously generated in situ. This novel method is complementary to the classical Huisgen cycloaddition in that it is well-suited to the preparation of dispiroindenoquinoxaline pyrrolidine derivatives.
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