Diastereoselective Palladium-Catalyzed [4+1] Cycloadditions of 4-Vinyl-1,4-dihydro-2H-3,1-benzoxazin-2-ones with In Situ Formed Carbenes
Yan-Hua Ma*, Fan-Xiao Meng*, Ruo-Nan Wang, Ya-Xin Fan, Qing-Qiang Su, Ji-Yuan Du*
*College of Chemistry and Chemical Engineering, Liaocheng
University, Liaocheng, Shandong 252059, P. R. of China, Email: dujy2015
163.com,
mayanhualcu.edu.cn
Y.-H. Ma, F.-X. Meng, R.-N. Wang, Y.-X. Fan, Q.-Q. Su, J.-Y. Du, Synthesis, 2022, 54, 499-505.
DOI: 10.1055/a-1561-5557
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Abstract
A palladium-catalyzed tandem [4+1] cycloaddition of 4-vinyl-1,4-dihydro-2H-3,1-benzoxazin-2-ones with N-tosylhydrazones provides diverse indolines with broad functional group compatibility in good yields with high levels of diastereoselectivity under mild conditions.
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Key Words
aza-o-quinone methides, dihydroindoles, [4+1] cycloadditions, Pd(0)-catalyzed, benzoxazinones, carbenes
ID: J66-Y2022
