2-chloromethylthiophene
2-Chloromethylthiophene is used as an intermediate to 1-(2-thienyl)-2-Propanone. In a 2-l. beaker surrounded by an ice-salt bath , and fitted with a mechanical stirrer and a thermometer, are placed 420 g. (392 ml., 5 moles) of thiophene and 200 ml. of concentrated hydrochloric acid. A rapid stream of hydrogen chloride is passed continuously into the mixture with vigorous stirring. When the temperature reaches 0°, 500 ml. of 37% formaldehyde solution is added at a rate that will permit the temperature to remain below 5°. The addition requires about 4 hours. When all the formaldehyde solution has been added, the mixture is extracted with three 500-ml. portions of ether. The ether extracts are combined, washed successively with water and saturated sodium bicarbonate solution, and then dried over anhydrous calcium chloride. The solvent is removed by distillation, and the product is distilled under reduced pressure through a 50-cm. fractionating column. The product boiling at 73–75°/17 mm. is collected. The yield is 257–267 g. (40–41%) of a colorless oily liquid.
The Urban Dictionary Mug
This is SO cool. Morning coffee will always memorialize my new addition to the English lexicon.
Too inappropriate
Item came at appropriate time in good condition.
epic
Got exactly what I wanted. Very happy with my mug.
It came faster than I thought it would and it looks great!
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Looked great, came earlier than expected, and in perfect condition!
It came faster than I thought it would and it looks great!
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Every Aspect of my Order (as First-Time customer) was actually very good, nice. .I ordered a white drinking mug with a Red background with text. would recommend this Site again.
so cool! u can make sarcastic stuff too. i put: sarcasm: being an absolute asshole
Like the mug for my daughter, but didn’t notice that I had color choices when checking out. The yellow was pre-set so I got that color. Would much rather have selected a different color.
Cute, well-made mug! Exactly like the photo. I can't wait to give this as a gift this Christmas!
The description of a person by their names is the realest I’ve ever come across
Mug looks great and everything is spelled correctly.
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the photo is all you need to know.
It’s pretty damn cool
It was a really good hoe mug!!!!!
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