Category: 29171-20-8

Related Products of 29171-20-8, 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 29171-20-8, name is 3,7-Dimethyloct-6-en-1-yn-3-ol. This compound has unique chemical properties. The synthetic route is as follows.

In the air, a sulfonic acid resin T239 (2.31 g) was added to a 500 mL autoclave at room temperature, and the autoclave was sealed.The air in the autoclave was replaced with nitrogen three times, and finally the nitrogen pressure in the autoclave was maintained at 2.0 MPa.Dehydrogenated linalool (76.89 g, 0.5 mol) and 2-methoxypropene (109.25 g, 1.5 mol) were sequentially charged into the autoclave by a parallel flow pump.Turn on the autoclave stirring (300 rpm) and the heat tracing. When the internal temperature of the reactor reaches 90 ° C,Start timing, heat preservation reaction for 8 hours, sampling analysis, GC detection, complete conversion of the raw material dehydrogenated linalool.After the treatment, the reaction solution was cooled to room temperature, and the resin catalyst and the reaction liquid were separated by filtration through a sand core funnel, and the filtrate was subjected to rotary evaporation.Excess 2-methoxypropene and by-product methanol were removed to obtain 95.95 g of a enedoketone product with a purity of 98percent and a yield of 97.8percent.

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 29171-20-8, 3,7-Dimethyloct-6-en-1-yn-3-ol.

Reference:
Patent; Wanhua Chemical Group Co., Ltd.; Xie Shuo; Huang Wenxue; Wang Yanbin; (10 pag.)CN109534977; (2019); A;,
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Application of 29171-20-8, 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. 29171-20-8, name is 3,7-Dimethyloct-6-en-1-yn-3-ol, molecular formula is C10H16O, 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.

a) 2,6-dimethyloct-7-yne-2,6-diol (2) The reactor was charged with water (1593 ml) and sulfuric acid (875 g, 8.7 mol) was added. The solution was cooled to 20 ¡ãC. 3, 7-dimethyloct-6-en-l-yn-3-ol (1, 2.45 kg, 16.1 mol) was added and the mixture was stirred at 25 ¡ãC for 48 hours. Water (1.5 I) and methyl tert.-butyl ether (1.6 I) was added and the mixture was stirred for 10 minutes. The layers were separated and the aqueous layer was extracted with methyl tert.-butyl ether (1.6 I). The organic layers were combined and washed with NaOH 2M (250 ml, pH 0), with saturated KHC03 solution (700 ml, pH 8-9) and brine (800 ml). The solution was dried over MgS04 and concentrated in vacuo. Residual 3,7-dimethyloct-6-en-l-yn-3-ol and volatile side products were removed by distillation over a 20 cm Vigreux column (b.p. 35 – 104¡ãC at 0.4 mbar). The crude product was wipe-film distilled (150 ¡ãC at 0.06 mbar) to afford (2) (1642 g, 69percent yield) as a light yellow liquid. The product will crystallize upon standing. A sample was crystallized from hexane to afford white crystals, m.p. 48-49 ¡ãC . IH NMR: 3.36 (s, IH); 2.40 (s, IH); 2.20 (s, IH); 1.67-1.39 (m, 6H); 1.43 (s, 3H); 1.16 (s, 6H). 13C NMR: 88.5 (s), 71.7 (d), 71.6, 68.1 (2s), 44.2, 44.0 (2t), 30.2, 29.6, 29.5 (3q), 19.8 (t). MS: 137 (10, M+ -CH3, H20), 109 (29), 79 (40), 77 (15), 71 (15), 69 (42), 66 (59), 59 (100), 56 (28), 43 (91), 41 (21).

According to the analysis of related databases, 29171-20-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; GIVAUDAN SA; ALCHENBERGER, Alain; BERBEZ, Chloe; FINN, Clare; LELIEVRE, Dominique; LOVCHIK, Martin Alan; POIGNON-MARTEL, Roseline; ROMEY, Gilles; WO2014/198709; (2014); A1;,
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Electric Literature of 29171-20-8, Adding some certain compound to certain chemical reactions, such as: 29171-20-8, name is 3,7-Dimethyloct-6-en-1-yn-3-ol,molecular formula is C10H16O, 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 29171-20-8.

EXAMPLE 3 Manufacture of 4-methyl-4-(4-methyl-3-pentenyl)-5-methylene-1,3-dioxolan-2-one According to the methodology described in Example 1, but with a heating period of 8 hours at 20 bar (2000 kPa) and 80¡ã C., and starting from 68.51 g (0.45 mol) of 3,7-dimethyl-oct-1-yn-6-en-3-ol (dehydrolinalool) there are obtained 69.41 g (97.79percent content) of 4-methyl-4-(4-methyl-3-pentenyl)-5-methylene-1,3-dioxolan-2-one; the yield is 76.9percent based on the dehydrolinalool used.

According to the analysis of related databases, 29171-20-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Roche Vitamins Inc.; US5817838; (1998); A;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts