Tetrahedron Letters p. 4247 - 4250 (1980)
Update date:2022-08-03
Topics:
Schaumann, Ernst
Roehr, Armin
Adiwidjaja, Gunadi
The (2+2) cycloaddition of thioketenes 1 with isocyanates 2 yields 4-thioxo-2-azetidinones 3, which can be hydrolyzed to the N-unsubstituted compound 4 and thus used as versatile intermediates.
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(2004)Doi:10.1021/jo01111a021
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(1954)
