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ChemicalBook CAS DataBase List QUASSIN
76-78-8

QUASSIN synthesis

4synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 10 steps
1.1: 92 percent / H2 / Pd/C / ethanol / 48 h / 20 °C
2.1: DIBAL-H / tetrahydrofuran; hexane / 0.5 h / -78 °C
3.1: conc. HCl / 1 h / 0 °C
4.1: DMSO; TFAA; Et3N / CH2Cl2 / -78 - 20 °C
5.1: 7 mg / NaH / dimethylformamide / 1 h / -20 °C
6.1: LDA / tetrahydrofuran / 0.5 h / -78 °C
6.2: MoOPH / tetrahydrofuran / -78 - 0 °C
7.1: DMSO; TFAA; Et3N / CH2Cl2 / -78 - 20 °C
8.1: 5.7 mg / NaH / dimethylformamide / 0.67 h / -20 °C
9.1: AcOH / H2O / 0.42 h / Heating
10.1: 3.8 mg / Ag2CO3 on Celite / benzene / 2.5 h / Heating

References:

Shing, Tony K. M.;Jiang, Qin [Journal of Organic Chemistry,2000,vol. 65,# 21,p. 7059 - 7069]

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