645-45-4

Basic information

• Product Name: Hydrocinnamoyl chloride
• Synonyms: PHENYLPROPIONYLCHLORIDE;beta-Phenylpropanoyl chloride;beta-phenylpropanoylchloride;dihydrocinnamoylchloride;Propionyl chloride, 3-phenyl-;3-PHENYLPROPIONIC ACID CHLORIDE;3-PHENYLPROPIONYL CHLORIDE;3-PHENYLPROPANOYL CHLORIDE
• CAS NO: 645-45-4
• Molecular Formula: C9H9ClO
• Molecular Weight: 168.62
• EINECS: 211-443-6
• Product Categories: Pharmaceutical Intermediates;Aromatic Halides (substituted);ACID CHLORIDES;Pyridines
• Mol File: 645-45-4.mol
• Article Data: 114

Chemical Properties

• Melting Point: −7-−5 °C(lit.)
• Boiling Point: 107 °C11 mm Hg(lit.)
• Flash Point: 227 °F
• Appearance: deep greenish-yellow/Liquid
• Density: 1.135 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.0606mmHg at 25°C
• Refractive Index: n20/D 1.5265(lit.)
• Storage Temp.: -20°C
• Solubility: Chloroform (Slightly)
• Water Solubility: Soluble in water (reacts), and ether.
• Sensitive: Moisture Sensitive
• BRN: 742586
• CAS DataBase Reference: Hydrocinnamoyl chloride(CAS DataBase Reference)
• NIST Chemistry Reference: Hydrocinnamoyl chloride(645-45-4)
• EPA Substance Registry System: Hydrocinnamoyl chloride(645-45-4)

Safety Data

• Hazard Codes: C
• Statements: 20-34-29-14
• Safety Statements: 26-36/37/39-45-8-30-23
• RIDADR: UN 3265 8/PG 2
• WGK Germany: 3
• RTECS: MW5652395
• F: 10-21
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• Hazardous Substances Data: 645-45-4(Hazardous Substances Data)

Usage

Chemical Properties

clear colorless to light yellow liquid

Uses

Different sources of media describe the Uses of 645-45-4 differently. You can refer to the following data:
1. Hydrocinnamoyl chloride is a derivative of phenylpropionic acid used in the preparation of a wide range of pharmaceutical compounds such as antivirals and antitumor agents.
2. 3-Phenylpropionyl Chloride is a derivative of phenylpropionic acid used in the preparation of a wide range of pharmaceutical compounds such as antivirals and antitumor agents.
3. Hydrocinnamoyl chloride has been used in:enantioselective synthesis of the antifouling agent, (+)-maculalactone Asynthesis of hydrocinnamoyl-farnesyl-L-cysteine methyl ester

General Description

Reduction of hydrocinnamoyl chloride at mercury cathodes in acetonitrile containing tetraalkylammonium perchlorates has been investigated by cyclic voltammetry.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C9H9ClO/c10-9(11)7-6-8-4-2-1-3-5-8/h1-5H,6-7H2

Synthetic route

3-Phenylpropionic acid (501-52-0) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
With thionyl chloride; N,N-dimethyl-formamide In dichloromethane at 23℃;	100%
With oxalyl dichloride In dichloromethane at 20℃;	100%
With oxalyl dichloride In dichloromethane for 24h; Inert atmosphere;	100%

tert-butyl 3-phenylpropanoate (16537-10-3) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
With phosphorus trichloride In acetonitrile at 80℃; for 3h; Schlenk technique;	57%
With thionyl chloride; water at 20℃; for 0.5h; Reagent/catalyst; Sealed tube;

4-methoxy-7-morpholin-4-yl-benzothiazol-2-yl-amine (383865-57-4) → N-(4-Methoxy-7-morpholin-4-yl-benzothiazol-2-yl)-3-phenyl-propionamide + hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
	A 3% B n/a

oxalyl dichloride (79-37-8) + 3-Phenylpropionic acid (501-52-0) → hydrocinnamic acid chloride (645-45-4)

Dichloromethyl methyl ether (4885-02-3) + 3-Phenylpropionic acid (501-52-0) → Methyl formate (107-31-3) + hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
With zinc(II) chloride at 100℃;

benzyl alcohol (100-51-6) + azide of <3,4-dimethoxy-phenyl>-succinic acid dihydrazide → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
Multi-step reaction with 2 steps 1.1: potassium / toluene / 4 h / Heating 1.2: 51 percent / toluene; benzene / 16 h / Heating 2.1: thionyl chloride / toluene / 2 h / 70 - 75 °C View Scheme

(E)-3-phenylacrylic acid (140-10-3) + isotope ene → hydrocinnamic acid chloride (645-45-4) + 1.2.2.3-tetramethyl-cyclopentylcarbinol

Conditions	Yield
Multi-step reaction with 2 steps 1: 80 percent / H2 / 5percent Pd-C / ethyl acetate / 10 h 2: thionyl chloride / CHCl3 / Ambient temperature View Scheme

(E)-3-phenylacrylic acid (140-10-3) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
Multi-step reaction with 2 steps 1: 83 percent / H2 / platinum / ethanol 2: thionyl chloride / benzene View Scheme
Multi-step reaction with 2 steps 1: 5% Pd(OH)2/C; hydrogen / ethyl acetate / 22 h / 20 °C / 5171.62 Torr 2: oxalyl dichloride / dichloromethane; N,N-dimethyl-formamide / 1 h / 0 - 20 °C View Scheme

2-methylpropyl 3-phenypropionate (28048-94-4) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
Multi-step reaction with 4 steps 1: 3 N aq. NaOH / ethanol / 12 h / Ambient temperature 2: dicyclohexylcarbodiimide / CH2Cl2 3: 1.) hexamethyldisilazane, 1.6 M n-BuLi, 2.) CS2, 3.) PhSeO2H / 1.) THF, hexane, -20 deg C, 30 min, 2.) THF, rt, 3.) THF, rt, 5 h 4: oxalyl chloride, DMF / benzene / Ambient temperature View Scheme
Multi-step reaction with 2 steps 1: 3 N aq. NaOH / ethanol / 12 h / Ambient temperature 2: oxalyl chloride, DMF / benzene / Ambient temperature View Scheme

3-phenyl-N-(pyridin-3-yl)propanamide (119520-49-9) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
Multi-step reaction with 2 steps 1: 1.) hexamethyldisilazane, 1.6 M n-BuLi, 2.) CS2, 3.) PhSeO2H / 1.) THF, hexane, -20 deg C, 30 min, 2.) THF, rt, 3.) THF, rt, 5 h 2: oxalyl chloride, DMF / benzene / Ambient temperature View Scheme

N-(4-nitrophenyl)-3-phenylpropionamide (119520-57-9) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
Multi-step reaction with 3 steps 1: 1.) phosgene, 2.) pyridine / 1.) CH2Cl2, 0 deg C, 2.) CH2Cl2, rt, 30 min, 3.) CH2Cl2, 3 h 2: 3 N aq. NaOH / ethanol / 12 h / Ambient temperature 3: oxalyl chloride, DMF / benzene / Ambient temperature View Scheme

3-Phenyl-N-pyridin-3-yl-thiopropionimidic acid pyridin-2-yl ester (119541-41-2) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
Multi-step reaction with 3 steps 1: 90 percent / water / dioxane / 12 h / Ambient temperature 2: 1.) hexamethyldisilazane, 1.6 M n-BuLi, 2.) CS2, 3.) PhSeO2H / 1.) THF, hexane, -20 deg C, 30 min, 2.) THF, rt, 3.) THF, rt, 5 h 3: oxalyl chloride, DMF / benzene / Ambient temperature View Scheme

Cinnamic acid (621-82-9) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
Multi-step reaction with 2 steps 1: hydrogen; palladium 10% on activated carbon / ethanol / 5 h / 20 °C / Inert atmosphere 2: oxalyl dichloride / N,N-dimethyl-formamide / 2 h / 0 - 20 °C / Inert atmosphere View Scheme
Multi-step reaction with 2 steps 1: hydrogen; palladium on activated charcoal 2: oxalyl dichloride / Inert atmosphere View Scheme

3-phenyl-propionaldehyde (104-53-0) → hydrocinnamic acid chloride (645-45-4)

Conditions	Yield
With trichloroisocyanuric acid In dichloromethane at 20℃; for 120h; Inert atmosphere;
With trichloroisocyanuric acid In dichloromethane at 20℃; Inert atmosphere;
With trichloroisocyanuric acid In dichloromethane at 20℃; Inert atmosphere;
With trichloroisocyanuric acid In dichloromethane at 20℃; for 4h; Inert atmosphere; Irradiation;

diazomethane (186581-53-3, 908094-01-9) + hydrocinnamic acid chloride (645-45-4) → 1-diazo-4-phenyl-2-butanone (10290-42-3)

Conditions	Yield
In diethyl ether 1.) ice-salt bath, 1 h, 2.) ice-salt bath -> room temperature, 1 h;	100%
With potassium hydroxide; ethoxyethoxyethanol; N-methyl-N-nitrosotoluene-p-sulfonamide In tetrahydrofuran; diethyl ether; water at 55℃;	100%
for 4h; Ambient temperature;	93%

diethylamine (109-89-7) + hydrocinnamic acid chloride (645-45-4) → N,N-diethyl-3-phenylpropanamide (18859-19-3)

Conditions	Yield
With triethylamine In dichloromethane at 20℃; for 14h; Inert atmosphere;	100%
With triethylamine In dichloromethane at 0 - 20℃; for 14h; Inert atmosphere;	96%

dimethyl amine (124-40-3) + hydrocinnamic acid chloride (645-45-4) → N,N-dimethyl-3-phenylpropanamide (5830-31-9)

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃; for 14h; Inert atmosphere;	100%
With triethylamine In diethyl ether	93%
With triethylamine In diethyl ether Inert atmosphere;	93%

1-amino-2-propene (107-11-9) + hydrocinnamic acid chloride (645-45-4) → N-(prop-2-enyl)-3-phenylpropanamide (133055-17-1)

Conditions	Yield
In tetrahydrofuran at 25℃; for 24h; Inert atmosphere;	100%

hydrocinnamic acid chloride (645-45-4) + (S)-5,5-Di(4'-tolyl)-4-isopropyl-1,3-oxazolidin-2-one (213887-79-7) → (S)-5,5-Di(4'-tolyl)-4-isopropyl-3-(1'-oxo-3'-phenylpropyl)-1,3-oxazolidin-2-one (213887-83-3)

Conditions	Yield
With dmap; triethylamine	100%
With dmap; triethylamine In dichloromethane at 20℃; for 5h;	100%

hydrocinnamic acid chloride (645-45-4) + dibenzylamine (103-49-1) → (N,N)-dibenzyl-3-phenylpropanamide (180747-56-2)

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃; for 14h; Inert atmosphere;	100%
With triethylamine In dichloromethane at 20℃; Inert atmosphere;	90%
With triethylamine In dichloromethane at 0 - 23℃; for 16h; Inert atmosphere;	80%
With triethylamine In dichloromethane at 20℃; for 0.333333h;	62%
With triethylamine In dichloromethane at 23℃; for 1h;

β-naphthol (135-19-3) + hydrocinnamic acid chloride (645-45-4) → naphthalen-2-yl 3-phenylpropanoate (94305-35-8)

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃;	100%

2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (461699-81-0) + hydrocinnamic acid chloride (645-45-4) → N-[2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-3-phenylpropanamide

Conditions	Yield
With triethylamine In dichloromethane for 23h;	100%
With triethylamine In dichloromethane for 23h;	100%

pyrrolidine (123-75-1) + hydrocinnamic acid chloride (645-45-4) → 3-phenyl-1-pyrrolidin-1-yl-propane-1-one (151647-54-0)

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃;	100%
With triethylamine In dichloromethane at 0 - 20℃; for 14h; Inert atmosphere;	99%
In dichloromethane at 0 - 20℃; Inert atmosphere;	78%
With triethylamine In dichloromethane at 20℃; for 12h;
at 0 - 20℃; for 20h; Alkaline conditions;

methyl pyrrolidine-2-carboxylate hydrochloride (2133-40-6, 65365-28-8, 79397-50-5) + hydrocinnamic acid chloride (645-45-4) → methyl 1-(3-phenylpropanoyl)pyrrolidine-2-carboxylate (946438-16-0)

Conditions	Yield
With triethylamine In dichloromethane at 20℃; for 1h; Inert atmosphere;	100%

hydrocinnamic acid chloride (645-45-4) + phenol (108-95-2) → phenyl 3-phenylpropanoate (726-26-1)

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In potassium hydroxide at 20 - 25℃; for 1.5h; pH=11.5; Schotten-Baumann-type reaction;	99%
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 5℃; for 1h;	85%

2,2-dimethoxyethylamine (22483-09-6) + hydrocinnamic acid chloride (645-45-4) → N-(2,2-dimethoxyethyl)-3-phenylpropanamide (133950-89-7)

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In potassium hydroxide; ethyl acetate at 20 - 25℃; for 1.5h; pH=11.5; Schotten-Baumann-type reaction;	99%
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 5℃; for 1h;	86%
In dichloromethane at 5 - 20℃;

N-methylhydroxyamine hydrochloride (4229-44-1) + hydrocinnamic acid chloride (645-45-4) → N-hydroxy-N-methyl-3-phenylpropanamide (111750-23-3)

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃; for 2h; Inert atmosphere;	99%
With triethylamine In dichloromethane for 1h; Ambient temperature;	88%
With sodium hydrogencarbonate In dichloromethane at 0 - 20℃; Inert atmosphere;	75%

(3aS,7aS)-hexahydrobenzo[d]oxazol-2(3H)-one (189942-51-6) + hydrocinnamic acid chloride (645-45-4) → (3aS,7aS)-3-(3-phenylpropanoyl)hexahydrobenzo[d]oxazol-2(3H)-one

Conditions	Yield
Stage #1: (4S,5S)-trans-hexahydrobenzoxazolidin-2-one With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.5h; Stage #2: hydrocinnamic acid chloride In tetrahydrofuran; hexane at -78 - 20℃; for 1h;	99%

(3aR,7aS)-hexahydrobenzo[d]oxazol-2(3H)-one (189942-50-5) + hydrocinnamic acid chloride (645-45-4) → (4R,5S)-(N-hydrocinnamoyl)hexahydrobenzoxazolidin-2-one

Conditions	Yield
Stage #1: (3aR,7aS)-hexahydrobenzo[d]oxazol-2(3H)-one With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.5h; Stage #2: hydrocinnamic acid chloride In tetrahydrofuran; hexane at -78 - 20℃; for 1h;	99%

(3aS,7aR)-3a,4,5,6,7,7a-hexahydrobenzoxazolin-2-one (21651-79-6) + hydrocinnamic acid chloride (645-45-4) → (4S,5R)-(N-hydrocinnamoyl)hexahydrobenzoxazolidin-2-one

Conditions	Yield
Stage #1: (3aS,7aR)-3a,4,5,6,7,7a-hexahydrobenzoxazolin-2-one With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.5h; Stage #2: hydrocinnamic acid chloride In tetrahydrofuran; hexane at -78 - 20℃; for 1h;	99%

N,O-dimethylhydroxylamine*hydrochloride (6638-79-5) + hydrocinnamic acid chloride (645-45-4) → N-methoxy-N-methyl-3-phenylpropionamide (170646-96-5)

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 5℃; for 1h;	99%
With pyridine In dichloromethane at 0 - 20℃;	93%
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In potassium hydroxide; ethyl acetate at 20 - 25℃; for 1.5h; pH=11.5; Schotten-Baumann-type reaction;	91%

(2-furyl)methyl alcohol (98-00-0) + hydrocinnamic acid chloride (645-45-4) → furan-2-ylmethyl 3-phenylpropanoate

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 5℃; for 1h;	99%
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In potassium hydroxide; ethyl acetate at 20 - 25℃; for 1.5h; pH=11.5; Schotten-Baumann-type reaction;	97%

(S)-1-phenyl-ethylamine (2627-86-3) + hydrocinnamic acid chloride (645-45-4) → N-(3-phenylpropanoyl)-(S)-1-phenylethylamine (200803-30-1)

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 5℃; for 1h;	99%
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In potassium hydroxide at 20 - 25℃; for 1.5h; pH=11.5; Schotten-Baumann-type reaction;	75%

tert-butylamine (75-64-9) + hydrocinnamic acid chloride (645-45-4) → N-tert-butyl-3-phenylpropionamide (58680-45-8)

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 25℃; for 2h;	99%
With triethylamine In diethyl ether	86%
With triethylamine In diethyl ether Inert atmosphere;	86%

2,4-dichlorophenol (120-83-2) + hydrocinnamic acid chloride (645-45-4) → 2,4-dichlorophenyl 3-phenylpropanoate (40123-46-4)

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 5℃; for 1h;	99%

2,4-Dichloroaniline (554-00-7) + hydrocinnamic acid chloride (645-45-4) → N-(2,4-dichlorophenyl)-3-phenylpropanamide

Conditions	Yield
With 1-methyl-1H-imidazole; N,N,N,N,-tetramethylethylenediamine; potassium carbonate In acetonitrile at 0 - 5℃; for 1h;	99%

1-hydroxy-pyrrolidine-2,5-dione (6066-82-6) + hydrocinnamic acid chloride (645-45-4) → 2,5-dioxopyrrolidin-1-yl 3-phenylpropanoate (109318-10-7)

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃; for 1h;	99%

C15H16N4O2 + hydrocinnamic acid chloride (645-45-4) → C24H24N4O3

Conditions	Yield
With pyridine In dichloromethane at 20℃; for 3h;	99%

2-(Methylthio)aniline (2987-53-3) + hydrocinnamic acid chloride (645-45-4) → N-(hydrocinnamoyl)-2-methylthioaniline (708222-26-8)

Conditions	Yield
With triethylamine In dichloromethane	99%

1-(3-phenylpropanoyl)-(3R,4R)-3-[1(R)-hydroxyethyl]-4-(acetoxy)-azetidin-2-one (1197421-92-3) + hydrocinnamic acid chloride (645-45-4) → 1-(3-phenylpropanoyl)-(3R,4R)-3-[1(R)-(3-phenylpropanoyloxy)-ethyl]-4-(acetoxy)-azetidin-2-one (1197421-94-5)

Conditions	Yield
With pyridine In dichloromethane at 20℃; for 15h; Inert atmosphere;	99%

C22H22O4 + hydrocinnamic acid chloride (645-45-4) → C31H30O5

Conditions	Yield
With dmap; triethylamine In dichloromethane at 0 - 20℃; Molecular sieve;	99%

2-(3,4-dimethoxyphenyl)-ethylamine (120-20-7) + hydrocinnamic acid chloride (645-45-4) → N-(3,4-dimethoxyphenethyl)-3-phenylpropanamide (2878-60-6)

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃; for 2h;	99%
With triethylamine In tetrahydrofuran at 0 - 20℃;	93%
With sodium hydroxide In dichloromethane; water at 0℃; for 0.166667h;	1920 mg

5-(benzyloxy)-3,4,6-trimethylpyridine-2-amine (1444335-07-2) + hydrocinnamic acid chloride (645-45-4) → N-[5-(benzyloxy)-3,4,6-trimethylpyridin-2-yl]-3-phenylpropanamide (1616249-57-0)

Conditions	Yield
With triethylamine In dichloromethane at 20℃;	99%
With triethylamine In dichloromethane at 20℃; for 8h;	99%
With triethylamine In dichloromethane at 20℃; for 8h;	99%
With triethylamine In dichloromethane at 20℃;	99%

Upstream product

• 79-37-8 oxalyl dichloride 
• 501-52-0 3-Phenylpropionic acid 
• 4885-02-3 Dichloromethyl methyl ether 
• 140-10-3 (E)-3-phenylacrylic acid 
• 104-53-0 3-phenyl-propionaldehyde 
• 330-12-1 4-trifluoromethoxybenzoic acid 
• 16537-10-3 tert-butyl 3-phenylpropanoate 
• 621-82-9 Cinnamic acid 
• 383865-57-4 4-methoxy-7-morpholin-4-yl-benzothiazol-2-yl-amine 
• 119541-41-2 3-Phenyl-N-pyridin-3-yl-thiopropionimidic acid pyridin-2-yl ester 
• 119520-57-9 N-(4-nitrophenyl)-3-phenylpropionamide 
• 119520-49-9 3-phenyl-N-(pyridin-3-yl)propanamide 
• 28048-94-4 2-methylpropyl 3-phenypropionate 
• 100-51-6 benzyl alcohol 

Downstream Products

• 40027-94-9 3-phenyl-1-(2-thienyl)propan-1-one 
• 101089-24-1 2-acetyl-3-oxo-5-phenyl-valeric acid ethyl ester 
• 126545-09-3 N-(2-methoxyphenyl)-3-phenylpropanamide 
• 51816-18-3 3-phenyl-propionic acid-(2-diethylamino-ethylamide) 
• 19312-19-7 2',5'-dihydroxydihydrochalcone 
• 152189-75-8 N-(2-hydroxyphenyl)-3-phenylpropanamide 
• 115419-51-7 3-phenyl-propionic acid-(N'-phenyl-hydrazide) 
• 92726-28-8 3-phenyl-propionic acid-(2-diethylamino-ethyl ester); hydrochloride 
• 18859-20-6 N-methyl-N-phenyl-3-phenylpropanamide 
• 109811-25-8 (+/-)-1,2c,5t-trimethyl-4-(3-phenyl-propionyloxy)-piperidine-4r-carboxylic acid methyl ester; hydrochloride 
• 100121-53-7 S-allyl 3-phenylpropanethioate 
• 14026-17-6 α-(β-Phenylpropionyloxy)-isobutyronitril 
• 128563-90-6 2-Diazo-5-phenylpentan-3-one 
• 133218-32-3 N-(3-Phenylpropionyl)pyrrolidine-2-thione 

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