Methyl butynol

Property Hexynol Ethyl-octynol Methyl-butynol Methyl-pentyn... 

The addition reaction is conducted at a temperature between 10 and 40°C and 2.10s Pa absolute, in the presence of a potash solution as catalyst. The operation takes place with liquid ammonia and excess acetylene (2/1) to prevent the formation of by-products from acetone. The reaction yield is as high as 96 molar per cent. 50 to 60 mol of products are obtained per mol of potash. Conversion is stopped by neutralizing the catalyst. Unconverted acetylene and ammonia are recovered by Dash and recycled. The methyl-butynol is then purified by distillation in two columns. The first removes unconverted acetone at the top, while the second separates the heavy compounds and an azeotrope containing 28 weight per cent water. The yield after distillation is 95 molar per cent. 

Ethynylation, GL, homogeneous catalyst, PETR tube, [-230 MJ/kmol] 30 °C, 200 s (methyl butynol, 2 data). 

Butyn-3-ol, 3-methyl-. See Methyl butynol Butynorate. See Dibutyltin dilaurate... 

Dimethyl acetylene carbinol Dimethylacetylenylcarbinol. See Methyl butynol... 

Dimethylethynylmethanol. See Methyl butynol Dimethyl formal. See Methylal Dimethyl formaldehyde. See Acetone Dimethyl formamide CAS 68-12-2 EINECS/ELINCS 200-679-5 UN NA 1693 (DOT) UN 2265 (DOT)... 

Dimethylpropynol. See Methyl butynol N-(1,1-Dimethylpropynyl)-3,5-dichlorobenzamide. See Pronamide... 

Ethynyl-1-cyclohexanol 1-Ethynylcyclohexan-I-0I. See 1-Ethynylcyclohexanol Ethynyidimethyl carbinol. See Methyl butynol Ethynyl methanol. See Propargyl alcohol Ethyolene bis (thioglycolate). See Glycol dimercaptoacetate... 

Methyl-3-butyn-2-ol 2-Methylbutyn-3-ol-2 3-Methyl-1-butyn-3-ol. See Methyl butynol (3-Methylbutyoxy) acetic acid, 2-propenyl ester. 

Silica, amorphous hydrated catalyst blocker, platinum silicones Methyl butynol catalyst component Bismuth oxide... 

PPG-24 butyl ether PPG-33 butyl ether PPG-40 butyl ether PPG-53 butyl ether intermediate, reactive plastics Methyl butynol Methyl pentynol intermediate, reactive polymerization initiator n-Propyl chloroformate intermediate, reactive polymerization, latex Vinyl 2-ethylhexanoate Vinyl propionate intermediate, reactive polymerization, thermosetting coatings Vinyl neononanoate Vinyl pivalate intermediate, reactive polymerization, water-soluble polymers Vinyl neodecanoate intermediate, reactive polyols Tetrabromophthalic anhydride intermediate, reactive resins PPG-5 butyl ether PPG-9 butyl ether PPG-15 butyl ether PPG-18 butyl ether PPG-22 butyl ether... 

Dimethylmorpholine 1,3-Dioxolane 1,2-Epoxybutane Methyl butynol Methyl, pentynol... 

Cyclopentanone Ethyl vinyl ketone Methyl butynol C5H8O2 Acetylacetone Allyl acetate Ethyl acrylate Glutaral... 

Methyl butynol n. HC=CCOH(CH3)2. A viscosity stabilizer and solvent for some nylons. 

In addition to the methods described above, prenol (51) can be prepared from methyl-butynol (43) by rearrangement to prenal (52) using a titanium alkoxide/copper chloride catalyst [69, 70] followed by selective hydrogenation using a ruthenium rhodium tris( 7-sulfonatoyl)phosphine trisodium salt (TPPTS) catalyst [71, 72]. However, it is more usual to prepare the prenyl esters by nucleophilic substitution of a carboxylate anion on prenyl chloride [503-60-6] (56) which, in turn, is available through hydrochlorination of isoprene [78-79-5] (1). This hydrochlorination often employs copper ions as catalysts. These processes are shown in Fig. 8.14. 

A recent report by Toste considerably expands the possibilities for further development of catalytic asymmetric cyclopropanation processes, as illustrated by the example in Equation 25 [86]. Exposure of methyl butynol... 

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