80-65-9, A heterogeneous catalyst is a catalyst that is present in a different phase than the reactants. Such catalysts generally function by furnishing an active surface upon which a reaction can occur. 80-65-9, name is 3-Aminooxazolidin-2-one, introduce a new downstream synthesis route as follows.
80-65-9, EXAMPLE II 3-[(6-Methoxy-4-chromanylidene)amino]-2-oxazolidinone A solution of 62 g (0.61 mole) of 3-amino-2-oxazolidone in 650 ml of benzene was treated with 15 drops of HCl (isopropanol) solution using mechanical stirring, and refluxed until all water was removed via a Dean-Stark trap. The solution was then treated with 107 g (0.60 mole) of 6-methoxy-4-chromanone and refluxed for 11.5 hr. A 9.6 ml portion of water (theory: 10.8 ml) was collected. The reaction mixture was stripped of benzene under the water pump. The residue was taken up in 200 ml of 1:1 isopropanol:ether, stored 24 hr at room temperature, refrigerated overnight and filtered. The resultant cream-colored solid was washed with 125 ml of isopropanol, ether, and dried. M.p. 54-64; yield: 115 g (73%). The crude product was recrystallized from 340 ml of isopropanol (Darco), washed with 75 ml of isopropanol, ether and dried. M.p. 67-71; Yield: 88 g (56%). Anal. Calcd. for C13 H14 N2 O4: C, 59.53; H, 5.38; N, 10.68. Found: C, 59.57; H, 5.28; N, 10.56.
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Reference£º
Patent; Morton-Norwich Products, Inc.; US4093627; (1978); A;,
Oxazolidine – Wikipedia
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