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Ethyl N-(diphenylmethylene)glycinate

Product Name
Ethyl N-(diphenylmethylene)glycinate
CAS No.
69555-14-2
Chemical Name
Ethyl N-(diphenylmethylene)glycinate
Synonyms
ethyl 2-[(diphenylMethylidene)aMino]acetate;ETHYL (DIPHENYLMETHYLENAMINO)ACETATE;N-(DIPHENYLMETHYLENE)GLYCINE ETHYL ESTER;(N,N-DIPHENYLMETHYLENE)GLYCINE ETHYL ESTER;NSC 263808;DPM-Gly-Oet;N-(DiphenyL;AURORA KA-6707;Ethyl N-(diphenylmet;N-Benzhydrylideneglycine ethyl
CBNumber
CB1720354
Molecular Formula
C17H17NO2
Formula Weight
267.32
MOL File
69555-14-2.mol
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Ethyl N-(diphenylmethylene)glycinate Property

Melting point:
51-53 °C(lit.)
Boiling point:
195°C/2mmHg(lit.)
Density 
1.0690 (rough estimate)
refractive index 
1.5400 (estimate)
Flash point:
>110°C
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
DMSO (Slightly), Methanol (Slightly)
pka
2.22±0.50(Predicted)
form 
Crystalline Powder or Crystals
color 
White to light yellow
Sensitive 
Moisture Sensitive
λmax
247nm(Hexane)(lit.)
BRN 
1979922
Stability:
Moisture Sensitive
InChIKey
QUGJYNGNUBHTNS-UHFFFAOYSA-N
LogP
1.35-3.18 at 25℃ and pH0-14
Dissociation constant
2.3 at 25℃
CAS DataBase Reference
69555-14-2(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
22-24/25-36/37-26
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
3
10-21
HS Code 
29224999
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H350May cause cancer

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P308+P313IF exposed or concerned: Get medical advice/attention.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
222542
Product name
N-(Diphenylmethylene)glycine ethyl ester
Purity
98%
Packaging
5g
Price
$130.15
Updated
2025/07/31
Sigma-Aldrich
Product number
222542
Product name
N-(Diphenylmethylene)glycine ethyl ester
Purity
98%
Packaging
25g
Price
$372.9
Updated
2025/07/31
TCI Chemical
Product number
D3833
Product name
N-(Diphenylmethylene)glycine Ethyl Ester
Purity
>97.0%(T)
Packaging
5g
Price
$40
Updated
2025/07/31
TCI Chemical
Product number
D3833
Product name
N-(Diphenylmethylene)glycine Ethyl Ester
Purity
>97.0%(T)
Packaging
25g
Price
$163
Updated
2025/07/31
TRC
Product number
D491635
Product name
N-(Diphenylmethylene)glycine Ethyl Ester
Packaging
1g
Price
$65
Updated
2021/12/16
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Ethyl N-(diphenylmethylene)glycinate Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystalline powder or

Uses

N-(Diphenylmethylene)glycine Ethyl Ester is used as a reagent in the synthesis of pyrazolopyrrolyl tetrahydropyran DPP-4 inhibitors.

Application

Ethyl N-(diphenylmethylene)glycinate features a diphenylmethylene group that enhances its reactivity and stability, making it particularly useful in organic synthesis and pharmaceutical development.

Reactions

Ethyl N-(diphenylmethylene)glycinate undergoes monoalkylations, dialkylations and Michael additions to ethylenic and acetylenic acceptors under appropriate solid-liquid phase transfer catalysis conditions. Further transformations of the α-disubstituted ketimines lead to α-alkylated aspartic and glutamic acid derivatives.

Synthesis

Ethyl N-(diphenylmethylene)glycinate is prepared by transimination of Benzophenone Imine with alkyl glycinate hydrochloride (room temperature/CH2Cl2).

References

[1] Patent: EP1422220, 2004, A1. Location in patent: Page 5
[2] Patent: CN104557684, 2017, B. Location in patent: Paragraph 0021-0026; 0027; 0028; 0029; 0030-0033
[3] Tetrahedron Letters, 2005, vol. 46, # 16, p. 2795 - 2797
[4] Patent: US2010/173777, 2010, A1. Location in patent: Page/Page column 23
[5] Patent: WO2016/27285, 2016, A2. Location in patent: Page/Page column 50; 51

Ethyl N-(diphenylmethylene)glycinate Preparation Products And Raw materials

Raw materials

Preparation Products

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Ethyl N-(diphenylmethylene)glycinate Suppliers

Shandong Province zhongteng Biotechnology Co. , Ltd.
Tel
0536-18660691112 18660691112
Email
718171628@qq.com
Country
China
ProdList
59
Advantage
58
Suzhou Highfine Biotech Co., Ltd
Tel
0512-69209928 18796809688
Fax
0512-68417696
Email
zhouyingxiang@highfine.com
Country
China
ProdList
475
Advantage
75
Shandong Qianyuan Polymer Material Co. , Ltd.
Tel
18678041314 18765609661
Email
2547772582@qq.com
Country
China
ProdList
946
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
Chembest Research Laboratories Limited
Tel
+86-21-20908456
Fax
021-58180499
Email
sales@BioChemBest.com
Country
China
ProdList
6003
Advantage
61
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
Sichuan Tongsheng Amino acids Co.,Ltd.
Tel
0838-2274206 13908101207
Fax
+86-838-2274207
Email
sales@biots.cn
Country
China
ProdList
279
Advantage
66
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
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View Lastest Price from Ethyl N-(diphenylmethylene)glycinate manufacturers

Shandong Vital Biotechnology Co., Ltd.
Product
Ethyl N-(diphenylmethylene)glycinate 69555-14-2
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
100tons
Release date
2025-11-19
Hebei Chuanghai Biotechnology Co., Ltd
Product
Ethyl N-(diphenylmethylene)glycinate 69555-14-2
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-29
Henan Aochuang Chemical Co.,Ltd.
Product
Ethyl N-(diphenylmethylene)glycinate 69555-14-2
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1ton
Release date
2022-09-23

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