Ethyl 4-nitrobenzoate NMR

Ethyl 4-nitrobenzoate

13 C NMR

NMR





IR









Ms











INTRODUCTION OF AMINO GROUP

 ethyl-p-aminobenzoate.



Shift (ppm)
167.4 114.1
151.5 60.6
132.0 14.7
120.0





picked up from a japanese site

₉H₁₁NO₂)の¹H-NMRスペクト ル (300MHz)である。図アを示す化合物はIRスペクトル (neat)にて1700 cm^-1付近に、又、図イを示す化合物はIRスペクトル (Nujol)にて 1650 cm^-1付近に共に強い吸収を示す。スペクトルと化合物の正し い組合せはどれか。ただし、図アの3.4 ppm付近、図イの6.3 ppm付近及び7.9 ppm付近のシグナルは重水処理すると消失する。また測定溶媒に基づくシグナ ルは除いてある。

　a　2-ethoxybenzamide
　b　4-ethoxybenzamide
　c　ethyl 3-aminobenzoate
　d　ethyl 4-aminobenzoate

　　　 ア　イ　
　　1　a　c　
　　2　a　d　
　　3　b　c
　　4　b　d　
　　5　c　a　
　　6　c　b

is (a and a) the figure below (C any compound that is shown in a ~ D ₉ H ₁₁ NO ₂ of) ¹ H-NMR spectrum is (300MHz). 1700 cm IR spectrum at (neat) compounds exhibit a Zua ^-1 in the vicinity, also, compounds that exhibit a spinal is 1650 cm IR spectrum at (Nujol) ^-1 shows a strong absorption both in the vicinity. Right combination of compounds and any spectrum. However, I lost signal around 3.4 ppm of Zua, of around 7.9 ppm and 6.3 ppm near the spinal when you heavy water processing. The signal based on the measurement solvent have been removed. 　a 2-Ethoxybenzamide 　b 4-Ethoxybenzamide 　c ethyl 3-Aminobenzoate 　D ethyl 4-Aminobenzoate

　　　 Eye　
　　1 a c　
　　2 a D　
　　b 3 c
　　4 b D　
　　c 5 a　
　　6 c b

.............

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