C. Agami et al., COMPARED REACTIVITY OF A BETA-AMINOTHIOL AND A BETA-AMINOALCOHOL TOWARDS PHENYLGLYOXAL, Tetrahedron letters, 34(44), 1993, pp. 7061-7062
In agreement with a previous theoretical statement. (R)-N-methyl pheny
lglycinol and (R)-N-methyl phenylglycinethiol react with phenylglyoxal
10 give respectively six and five-membered heterocycles.