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ChemicalBook CAS DataBase List 5,6-DIMETHYLURACIL
26305-13-5

5,6-DIMETHYLURACIL synthesis

9synthesis methods
-

Yield: 85%

Reaction Conditions:

with boron trifluoride diethyl etherate at 135; for 0.0833333 h;Neat (no solvent);Microwave irradiation;

Steps:

Synthesis using BF3 (1-5):
General procedure: A β-ketoester (1a-5a, 2 mmol), taken in a reactor vessel with BF3 Et2O (339mg, 2.4mmol) was mixed thoroughly for 1 min with urea (156mg, 2.6mmol). The vessel was closed immediately and was subjected to microwave irradiation at 135°C. The compound (1-5) was further purified by column chromatography. Yield: as shown in table-1

References:

Burgula, Laxmi Narayana;Radhakrishnan;Kundu, Lal Mohan [Tetrahedron Letters,2012,vol. 53,# 21,p. 2639 - 2642] Location in patent:supporting information; experimental part

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