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
The mug is pretty and the writing on it is clear. It is of good quality and it makes me smile.
Well madder nice print. 8 0z cup. I'd prefer a mug but will be ordering 3 more. Just my cuppa tea (or coffee). Americans always make fun of some of the things I say. Recently my brother and I were talking about the Trawna Maple Leafs. I decided to look it up and sure enough there is was Trawna the city I grew up in. Now who has the last laugh.
I ordered pink but got purple, and the text wasn't very clean, but overall, it is a mug.
It was a gift for my sister, who wrote it. She loved it and so did I!
pushin 🅿️ w this mug😩
Got a ligma mug it's my favorite mug now
Arrived quickly, nicely packaged, exactly as expected, a good quality mug. Thank you!
Always shipped in proper package and timely
straightforward order and delivery
What a mug. After i bought it i got so much more rizz
Fast service. Precisely what I ordered.
My son wanted this mug. I highly recommend ordering from this site. Easy to order, pay, and track. Mug arrived without issue and is perfect!
The mug is great! I use it every morning for my coffee.
The coffee mug looks great and always draws comments from others.
FUCKING BEST CUP EVER NGL
Loiks great
I had it drop-shipped and the recipient was very pleased. Thank you for the quick service and handling.
The coffee mug looks great and always draws comments from those seeing the first time.
perfect for when im expressing myself <3
The most coolest I own!
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