The solid-phase synthesis of 4H-3,1-benzoxazin-4-ones was achieved using silica-bound benzoyl chloride (SBBC) as dehydrating agent in reaction with 2-acylaminobenzoic acids. The silica-grafted reagent (SBBC) was simply recovered after reaction and reused several times.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2686276 | PMC |
| http://dx.doi.org/10.3762/bjoc.5.13 | DOI Listing |
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