1-Boc-3-pyrrolidinecarbaldehyde

Chemical Properties

Colorless to light yellow oil

Uses

1-Boc-pyrrolidine-3-carboxaldehyde is used in the preparation of tertiary amines as agonists of the nuclear hormone receptor Rev-erbα.

Synthesis

General procedure for the synthesis of 1-Boc-3-pyrrolidinecarboxaldehyde from 1-Boc-3-hydroxymethylpyrrolidine: 1 kg of N-Boc-pyrrolidine-3-methanol was dissolved in 5 liters of dimethylsulfoxide (DMSO), and 2.14 kg of manganese dioxide was slowly added at room temperature. The reaction mixture was stirred at room temperature for about 24 hours to ensure complete reaction. Upon completion of the reaction, insoluble solids were removed by filtration and the filtrate was concentrated by rotary evaporator to remove solvent. Ultimately, N-Boc-pyrrolidine-3-carbaldehyde (920 g) was purified by reduced pressure distillation in 93% yield.

References

[1] Patent: CN106588738, 2017, A. Location in patent: Paragraph 0036; 0041; 0042; 0046; 0047; 0048
[2] Patent: WO2005/49602, 2005, A1. Location in patent: Page/Page column 89; 90; 131
[3] Patent: WO2005/49605, 2005, A1. Location in patent: Page/Page column 117; 118; 159
[4] Synlett, 2017, vol. 28, # 4, p. 425 - 428
[5] Bioorganic and medicinal chemistry letters, 2002, vol. 12, # 13, p. 1785 - 1789