Ethyl 2,8-diMethyl-4-oxo-4H-chroMene-3-carboxylate synthesis

6synthesis methods

Product Name:Ethyl 2,8-diMethyl-4-oxo-4H-chroMene-3-carboxylate
CAS Number:367526-66-7
Molecular formula:C14H14O4
Molecular Weight:246.26

141-97-9 Synthesis

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Ethyl 2,8-diMethyl-4-oxo-4H-chroMene-3-carboxylate

367526-66-7
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Yield:-

Steps:

Multi-step reaction with 2 steps
1: 1,8-diazabicyclo[5.4.0]undec-7-ene; 4-toluenesulfonyl azide / acetonitrile / 3 h / 0 - 20 °C
2: dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; acetic acid / 1,2-dichloro-ethane / 12 h / 80 °C / Sealed tube

References:

Sun, Peng;Gao, Shang;Yang, Chi;Guo, Songjin;Lin, Aijun;Yao, Hequan [Organic Letters,2016,vol. 18,# 24,p. 6464 - 6467]