Category: 159981-19-8

The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 159981-19-8, name is 6-(2,2,2-Trifluoroethoxy)nicotinaldehyde. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 6-(2,2,2-Trifluoroethoxy)nicotinaldehyde

Step 1 – Synthesis of[5-(5-chloro-lH-pyrrolo[2,3-b]pyridin-3-ylmethyl)-pyridin-2-yl]-[6-(2,2,2- trifluoro-ethoxy)-pyridin-3-ylmethyl]-amine (P-0409):; [0254] To 5-(l -benzenesulfonyl-5-chloro-lH-pyrrolo[2,3-b]pyridin-3-ylmethyl)-pyridin-2- ylamine (599, 124.1 mg, 0.31 mmol, prepared as described in Example 29, Scheme 185) in ethanol (3.00 mL) and acetic acid (0.2 mL) were added 6-(2,2,2-trifluoro-ethoxy)-pyridine-3- carbaldehyde (603, 164.0 mg, 0.80 mmol) and silica supported cyanoborohydride (1.21 mmol/g, 0.700 g). The reaction was irradiated with microwave on 300 watts, 1000C for 150 minutes. To the reaction was added a solution of potassium hydroxide (9.0 M in water, 1.0 mL). The reaction was irradiated with microwave on 300 watts, 100 0C for 10 minutes. The reaction was poured into aqueous potassium carbonate and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated and purified by silica gel column chromatography eluting with 20% to 100% ethyl acetate in hexane to give the desired compound (P-0409, 10.6 mg, 7.6%). MS ESI) [M+H+]+ = 448.4.

With the rapid development of chemical substances, we look forward to future research findings about 159981-19-8.

Reference:
Patent; PLEXXIKON, INC.; WO2008/63888; (2008); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 159981-19-8, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 159981-19-8, name is 6-(2,2,2-Trifluoroethoxy)nicotinaldehyde, molecular formula is C8H6F3NO2, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

n-Butyllithium (5.14 mL, 13.4 mmol) is added to a suspension of methyltriphenylphosphonium bromide (4.41 g, 12.34 mmol) in tetrahydrofuran (51 mL) at -78 oC under nitrogen atmosphere . The reaction mixture is warmed to room temperature to yield deep red ylide solution. To ylide solution, cooling in ice, is introduced 6-(2,2,2-trifluoroethoxy)nicotinaldehyde (2.11 g, 10.3 mmol, Step-1) in tetrahydrofuran (10 mL) and stirred at room temperature for 3 hours. The reaction mixture is poured into water, extracted with ethyl acetate and dried over sodium sulfate and concentrated in vacuo. The residue is purified by column chromatography on silica gel eluting with n-hexane / ethyl acetate (10:1) to give 1.56 g (75% yield) of the title compound as colorless oil.1H-NMR (300 MHz, CDCl3) delta 8.10 (1H, d, J = 2.6 Hz), 7.75 (1H, dd, J = 8.4, 2.6 Hz), 6.84 (1H, d, J = 8.4 Hz), 6.65 (1H, dd, J = 17.6, 11.0 Hz), 5.68 (1H, d, J = 17.6 Hz), 5.27 (1H, d, J = 11.0 Hz), 4.76 (2H, q, J = 8.4 Hz), MS (ESI) m/z: 204 (M+H)+.

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 159981-19-8, 6-(2,2,2-Trifluoroethoxy)nicotinaldehyde.

Reference:
Patent; RAQUALIA PHARMA INC.; YAMAGISHI, Tatsuya; KAWAMURA, Kiyoshi; ARANO, Yoshimasa; MORITA, Mikio; WO2012/53186; (2012); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 159981-19-8, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.159981-19-8, name is 6-(2,2,2-Trifluoroethoxy)nicotinaldehyde, molecular formula is C8H6F3NO2, molecular weight is 205.13, as common compound, the synthetic route is as follows.

Resin-bound tetra-alkylcyanoborohydride (9.03 g, 21.2 mmol) was added to a preformed mixture of 7-(benzylthio)-1,2,3,4-tetrahydroisoquinoline (4 g, 14.1 mmol), 6-(2,2,2-trifluoroethoxy)nicotinaldehyde (3.18 g, 15.5 mmol), and glacial acetic acid (3.23 ml, 56.4 mmol) in MeOH (35 ml). The reaction vessel was fitted with a reflux condensor and heated to 40 C. overnight. The reaction mixture was cooled to room temperature, filtered through a fritted funnel, then neutralized by the addition of saturated aqueous NaHCO3 solution. The layers were cut and the aqueous phase extracted with EtOAc¡Á3. The combined organic layers were dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by medium pressure liquid chromatography ?MPLC? (KP-Sil 100 g SNAP column, BIOTAGE system) eluting with 1% MeOH/DCM over 3 CV followed by a gradient of 6-9% MeOH/DCM over 8 CV to give the desired compound. LC/MS (m/z): 445 (M+H)+

The chemical industry reduces the impact on the environment during synthesis 159981-19-8, I believe this compound will play a more active role in future production and life.

Reference:
Patent; Merck Sharp & Dohme Corp.; Berger, Richard; Blizzard, Timothy A.; Campbell, Brian T.; Chen, Helen Y.; Debenham, John S.; Dewnani, Sunita V.; Dubois, Byron; Gude, Candido; Guo, Zack Zhiqiang; Harper, Bart; Hu, Zhiyong; Lin, Songnian; Liu, Ping; Wang, Ming; Ujjainwalla, Feroze; Xu, Jiayi; Xu, Libo; Zhang, Rui; (64 pag.)US2018/9796; (2018); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem