2-chloromethylthiophene Tee
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 Tee
Customer Reviews
Good Decent, comfortable by all means
My wife bought this for me, my only thing about the shirt, is the big Vernon on the front. I think I would prefer it situated and smaller type as if overva pocket. Other than that I love it. Seems to be of good quality and easy wearability, but I have only tried it on, so am uncertain. Thank you for making my day
shirt made me cum
Dick Aww man I love this shirt for eating
people shat on my shirt that said shart and im mad they took a shit on it instead of a shart
Necero's shirt i can use this in almost every phrase. This shirt allows me to do some great stuff with my kids and grandkids! i'd love for anyone who says same to get this shirt!
Bad! Why is this T-shirt named shitty fucking??What a bad name it is!Recommend?Never!😡
The shirts are amazing! I will be ordering again. And recommend them to others 🙂
My UD shirts are my favorites. They fit well, last long, and are unique. I always have people reading my back.
Amazing This shirt is SOOOOO comfortable and I love the definition
BEST SHIRT OF ALL TIME THIS IS THE BEST SHIRT OF ALL TIME. LITERAL FUCKING HELL OF A PLACE HAS BECOME A PART OF MY EVERDAY VOCABULARY AND I RECOMMEND IT FOR ANYONE WHO IS FORCED TO SIT IN A PLACE THEY HATE FOR AN HOUR EVERDAY. GO BUY THE MUG, SHIRT, OR SWEATSHIRT NOW!
Awesome tshirt This tshirt is awesome but my name isn't actually Jayson but i bought it for his b-day
good is it very. i like shirt much,,,,, it contabfortable like it i do.
The Fucklix t shirt is perfect but I am still waiting for the xlarge I ordered. These are gifts and will be just what is needed. Hope I receive the xlarge soon then it's time to give them to the people I ordered them for. So glad I saw them . Thanks.
My wife loves it. Nice quality and so funny for the wearer. Thank you!
The shirt fit amazing, package was shipped rather fast! Thank you so much..
It is absolutely perfect and I love wearing it. Thank You.
Love the short mine says bih on it
this shit stays on during sex
Love it! Buyed it for my sister but I had to make it say her favorite anime 💀✨