A new synthetic route of 161117-83-5

The synthetic route of 161117-83-5 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 161117-83-5, tert-Butyl (2-methoxypyridin-3-yl)carbamate, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, Product Details of 161117-83-5, blongs to pyridine-derivatives compound. Product Details of 161117-83-5

Ketone 2-1 To a -70 C. solution of 1.12 g (5.0 mmol) of 3-(N-tertbutoxycarbonylamino)-2-methoxypyridine (Kelly, Tetrahedron Lett. 35 (48), 1994, 9003-9006) in 25 ML of dry ether was added 1.8 ML (12.0 mmol) TMEDA followed by 4.8 ML (12.0 mmol) of n-BuLi. The resulting solution was warmed to -15 C. where it was aged for 2 h.. The reaction mixture was recooled to -70 C. and treated with 0.83 ML (7.0 mmol) of ethyl trifluoroacetate.. After stirring an additional 3 h, the reaction was quenched with 25 ML of saturated NH4Cl solution and the two phases were separated.. The aqueous phase was extracted with 100 ML of EtOAc and the combined organic extracts were washed with 25 ML of brine and dried over MgSO4.. The yellow solution was concentrated and chromatographed (CH2Cl2) to afford trifluoromethyl ketone 2-1. 1H NMR (CDCl3) delta7.95 (d, J=8 Hz, 1H), 7.10 (bs, 1H), 6.95 (d, J=8Hz, 1H), 4.05 (s, 3H), 1.50 (s, 9H).

The synthetic route of 161117-83-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Merck & Co., Inc.; US6350745; (2002); B1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem