2) Keto & Enol Tautomers
- 이성질화의 일종으로 Keto와 Enol 형태의 상호 전환을 tautomerism이라 고 한다.
➀ 강염기 존재하에서 케톤과 알데하이드는 약한 양성자 산으로 작용한다.
ϳ3; α탄소의 양성자가 떼어져서 C와 O에 걸쳐 음전하로 퍼져있는 공명 안정 화된 엔올산 음이온을 형성한다.
3-nitrophthalic acid
with hydrazine. This process is condensation reaction. First, hydrazine(N2H4) is
heated with the 3-nitrophthalic acid. This reaction is most conveniently carried
out in the high-boiling solvent triethylene glycol. To boil off excess water, the
temperature is raised to the point where the dehydration occur.
Within a few minute, this process is completed.
Luminol(C
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*Separate Electric furnace and other system like Electronic scale
-Because Electric furnace temperature is very high
so we need to protect other system.
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*N
reaction is very
unstable and immediately decomposes with the loss of nitrogen to produce 5-aminophthalic acid
with electrons in an excited state. As the excited state relaxes to the ground state, the excess
energy is emitted as blue light.
4. The detecting of hemoglobin
Criminalists mix the luminol (C8H7O3N3) powder with a liquid containing hydrogen peroxide
(H