tert-Butyl (4-methyloxazol-5-yl)carbamate synthesis
- Product Name:tert-Butyl (4-methyloxazol-5-yl)carbamate
- CAS Number:3403-45-0
- Molecular formula:C9H14N2O3
- Molecular Weight:198.22
2510-32-9
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Yield:3403-45-0 87%
Reaction Conditions:
Stage #1: 4-methyl-1,3-oxazole-5-carboxylic acid;tert-butyl alcoholwith diphenyl phosphoryl azide;triethylamine for 24 h;Reflux;Curtius Rearrangement;
Stage #2: with sodium hydrogencarbonate at 0; for 2 h;Curtius Rearrangement;
References:
Jhaveri, Dishit P.;Osano, Mana;Wipf, Peter [Organic Letters,2020,vol. 22,# 6,p. 2215 - 2219] Location in patent:supporting information