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분야
pptDiels-Alder Reaction
Mechanism
Endo-stereoselectivity
1.Cracking of Dicyclopentadiene
2.cis-Norbornene-5,6-endo-dicarboxylic Anhydride
3.cis-Norbornene-5,6,-endo-dicarboxylic Acid
⑤continued distillation for half hour gives a total of about 20mL of monomer
주의) 얻어진 monomer는 실온에서 다시 dimer가 되기 때문에 cracking을 하는 동안 실험 2를 미리 준비 해놓고 실험 1에서 얻은 monomer를 바로 쓸 수 있게 한다.
① Place 6g of maleic anhydride in a 125-mL Erlenmeyer flask and dissolve the anhydride in 16mL of ethyl acetate by heating
② Add 16mL of ligroin or hexane, cool the solution in ice-bath
③ For remove moisture add 1g of calcium chloride.
④ Add 6mL of dry cyclopentadiene
