Category: 1001020-13-8

These common heterocyclic compound, 1001020-13-8, name is (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. Safety of (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol

b) 3-(trifluoromethyl)-7H-pyrazole-4-carbaldehyde(3-(trifluoromethyl)-7/-/-pyrazol-4-yl)methanol (600 mg, 3.61 mmol) was dissolved in MeCN (5 ml_). MnO2 (785 mg, 9.03 mmol) was added. The reaction mixture was heated at 120 0C for 5 min in the microwave. The reaction mixture was filtered through decalite, washed with MeCN (30 ml_), then concentrated in vacuo and purified by flash column chromatography (silica gel; eluent EtOA?heptane, 1 :1) to give the desired product (200 mg, 1.22 mmol, 34 %). 1 H NMR (400MHz, CD3OD): delta 8.44 (s, 1 H), 9.95 (s, 1 H)

The synthetic route of (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol has been constantly updated, and we look forward to future research findings.

Reference:
Patent; N.V. ORGANON; WO2008/3452; (2008); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Application of 1001020-13-8, These common heterocyclic compound, 1001020-13-8, name is (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

b) 3-(trifluoromethyl)-7H-pyrazole-4-carbaldehyde(3-(trifluoromethyl)-7/-/-pyrazol-4-yl)methanol (600 mg, 3.61 mmol) was dissolved in MeCN (5 ml_). MnO2 (785 mg, 9.03 mmol) was added. The reaction mixture was heated at 120 0C for 5 min in the microwave. The reaction mixture was filtered through decalite, washed with MeCN (30 ml_), then concentrated in vacuo and purified by flash column chromatography (silica gel; eluent EtOA?heptane, 1 :1) to give the desired product (200 mg, 1.22 mmol, 34 %). 1 H NMR (400MHz, CD3OD): delta 8.44 (s, 1 H), 9.95 (s, 1 H)

The synthetic route of 1001020-13-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; N.V. ORGANON; WO2008/3452; (2008); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 1001020-13-8, name is (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol, belongs to pyrazoles-derivatives compound, 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 1001020-13-8, category: pyrazoles-derivatives

(3-(Trifluoromethyl)-1H-pyrazol-4-yl)methanol (54.00 g, 0.325 mol) was suspended in toluene (2 L). MnO2 (113.00 g, 1.30 mol) and 4 molecular sieve powder (54.00 g) were added. The reaction mixture was stirred at reflux under nitrogen with a Dean-Stark trap for 5.5 h. The resulting mixture was filtered hot and the cake allowed to cool before washing with 1:1 DCM:MeOH solution (3×500 mL). The combined filtrates were concentrated in vacuo to give the desired product (54.00 g, 0.329 mol, 100%).1H NMR (400 MHz, DMSO): delta 8.72 (s, 1H), 9.91 (s, 1H)

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Reference:
Patent; N.V. Organon; US2009/131455; (2009); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Application of 1001020-13-8,Some common heterocyclic compound, 1001020-13-8, name is (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol, molecular formula is C5H5F3N2O, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

(S)-benzyl-5-(hydiOxymethyl)-2,3-dihydro-7 /-/-inden-2-ylcarbamate (7.13 mmol, 2.12g) was dissolved in DCM (20 ml_), thionyl chloride (14.26 mmol, 1.040 ml_, 1.696 g) added and the resultant solution stirred at room temperature for 45 min. The sample was concentrated and azeotroped with dichloromethane (x 4). Potassium carbonate (21.39 mmol, 2.96 g) was added followed by DMF (20 ml.) and (3-(trifluoromethyl)-1 H-pyrazol-4- yl)methanol (7.13 mmol, 1.184 g) and the mixture heated to 60 0C for 1 h. The mixture was concentrated and partitioned between ethylacetate/water. The aqueous layer was twice extracted with ethylacetate and combined organics dried, filtered and concentrated to give a yellow oil which was purified on silica eluting with 0 – 1 % MeOH/DCM to give (S)-benzyl-5-((4-(hydroxymethyl)-3-(trifluoromethyl)-7/-/-pyrazol-1-yl)methyl)-2,3-dihydro- 7H-inden-2-ylcarbamate as a light coloured oil (2.67 g, 84 %). 1H NMR (400 MHz, CDCI3) delta 1.83 (t, 1 H) 2.79 (m, 2H) 3.27 (m, 2H) 4.51 (bs, 1 H) 4.63 (d, 2H) 4.98 (bs, 1 H) 5.08 (bs, 2h) 5.24 (s, 2H) 7.05-7.1 1 (m, 2H) 7.18 (m, 1 H) 7.26-7.39 (m, 6H).

The synthetic route of 1001020-13-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; N.V. ORGANON; WO2009/147167; (2009); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Reference of 1001020-13-8, The chemical industry reduces the impact on the environment during synthesis 1001020-13-8, name is (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol, I believe this compound will play a more active role in future production and life.

(3-(Trifluoromethyl)-1H-pyrazol-4-yl)methanol (54.00 g, 0.325 mol) was suspended in toluene (2 L). MnO2 (113.00 g, 1.30 mol) and 4 molecular sieve powder (54.00 g) were added. The reaction mixture was stirred at reflux under nitrogen with a Dean-Stark trap for 5.5 h. The resulting mixture was filtered hot and the cake allowed to cool before washing with 1:1 DCM:MeOH solution (3×500 mL). The combined filtrates were concentrated in vacuo to give the desired product (54.00 g, 0.329 mol, 100%).1H NMR (400 MHz, DMSO): delta 8.72 (s, 1H), 9.91 (s, 1H)

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, (3-Trifluoromethyl-1H-pyrazol-4-yl)methanol, other downstream synthetic routes, hurry up and to see.