苯甲酰胺
一种芳香族伯酰胺，NH2 基团与羰基碳相连。
- 化学式
- C7H7NO
- 官能团
- 酰胺
- 摩尔质量
- 121.14 g/mol
- Also known as
- Benzoylamide, Benzoic acid amide, Benzenecarboxamide, Phenylcarboxamide, Phenylcarboxyamide, Amid kyseliny benzoove
概览
Nitrogen lone-pair delocalisation into the carbonyl reduces its ordinary amine-like basicity and acyl reactivity. Hydrolysis can recover benzoic acid or benzoate depending on conditions. Benzamide is therefore chemically distinct from aniline, whose nitrogen is attached directly to the aromatic ring.
Identifiers
- 化学式
- C7H7NO
- 官能团
- 酰胺
- 摩尔质量
- 121.14 g/mol
- Also known as
- Benzoylamide, Benzoic acid amide, Benzenecarboxamide, Phenylcarboxamide, Phenylcarboxyamide, Amid kyseliny benzoove
化学标识符
- SMILES
- C1=CC=C(C=C1)C(=O)N
- InChI
- InChI=1S/C7H7NO/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H2,8,9)
- PubChem CID
- 2331
性质
- 熔点
- 130 °C
- 沸点
- 288 °C
- 水中溶解度
- In water, 1.35X10+4 mg/l @ 25 °C
数据收录情况
Not published: Density.
Related compounds
Connected reactions
- Amide formation: Benzoyl chloride → Benzamide
氨向酰基羰基加成，形成四面体中间体。羰基重新形成时排出氯离子，质子转移后生成苯甲酰胺；额外的氨捕获酸，形成氯化铵。
参考文献
- PubChem Compound Summary: Benzamide (CID 2331)National Center for Biotechnology Information · PubChem
Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.
- OpenStax Organic Chemistry: Chemistry of amidesJohn McMurry · OpenStax · 2023
Supports the qualitative structural interpretation of the recorded molecular structure; no new physical measurement or verified preparative yield is claimed.
- Hazardous Substances Data Bank (HSDB): Benzamide — melting pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/2331#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Budavari, S. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 1996., p. 177
- Hazardous Substances Data Bank (HSDB): Benzamide — boiling pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/2331#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Budavari, S. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 1996., p. 177
- Hazardous Substances Data Bank (HSDB): Benzamide — solubilityHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/2331#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Seidell A; Solubilities of Organic Compounds. NY, NY: Van Norstrand Co Inc (1941)