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Diethyl 1,1-cyclobutanedicarboxylate

Diethyl 1,1-cyclobutanedicarboxylate structure

CAS No.: 3779-29-1

Chemical Name:: Diethyl 1,1-cyclobutanedicarboxylate

Synonyms: DIETHYL CYCLOBUTANE-1,1-DICARBOXYLATE;NSC 9017;AKOS BBS-00006459;1,1-DICARBOETHOXYCYCLOBUTANE;DIETHYL 2,2-TRIMETHYLENEMALONATE;1,1-Bis(ethoxycarbonyl)cyclobutane;Diethl1,1-cyclobutanedicarboxylate;DIETHYL 1,1-CYCLOBUTANEDICARBOXYLATE;Diethyl 1,1-Cyclobutanedicarboxylate >1,1-decarboxylic acid diethyl cyclobutane

CBNumber:: CB3352522

Molecular Formula:: C10H16O4

Molecular Weight:: 200.23

MDL Number:: MFCD00019261

MOL File:: 3779-29-1.mol

MSDS File:: SDS

Last updated:2026-05-28 05:18:24

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Diethyl 1,1-cyclobutanedicarboxylate Properties

Boiling point	104-105 °C12 mm Hg(lit.)
Density	1.05 g/mL at 20 °C(lit.)
refractive index	1.4360
Flash point	89°C
storage temp.	Sealed in dry,Room Temperature
solubility	Chloroform, Dichloromethane, Methanol,
form	Oil
color	Colourless
Specific Gravity	1.05
Water Solubility	Insoluble in water.
BRN	2050195
InChI	InChI=1S/C10H16O4/c1-3-13-8(11)10(6-5-7-10)9(12)14-4-2/h3-7H2,1-2H3
InChIKey	JPNJEJSZSMXWSV-UHFFFAOYSA-N
SMILES	C1(CCC1)(C(=O)OCC)C(=O)OCC
CAS DataBase Reference	3779-29-1(CAS DataBase Reference)
FDA UNII	S7BAH6Z7AN
NIST Chemistry Reference	Diethyl 1,1-cyclobutanedicarboxylate(3779-29-1)
EPA Substance Registry System	1,1-Cyclobutanedicarboxylic acid, diethyl ester (3779-29-1)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H227

Precautionary statements

P210e-P280a-P370+P378a-P501a-P210-P280-P370+P378-P403+P235-P501

PPE

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Risk Statements

36/37/38

Safety Statements

23-24/25

WGK Germany

TSCA

TSCA listed

HS Code

38220090

Storage Class

10 - Combustible liquids

REACH Registrations

Active

NFPA 704

	2
0		0

Diethyl 1,1-cyclobutanedicarboxylate price More Price(50)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	S436178	DIETHYL 1,1-CYCLOBUTANEDICARBOXYLATE Aldrich^CPR	3779-29-1	1 unit	$32.7	2026-04-30	Buy
Sigma-Aldrich	S436178	DIETHYL 1,1-CYCLOBUTANEDICARBOXYLATE Aldrich	3779-29-1	1g	$29.8	2024-03-01	Buy
Sigma-Aldrich	28690	Diethyl cyclobutane-1,1-dicarboxylate ≥98.0% (GC)	3779-29-1	25ml	$299	2023-06-20	Buy
TCI Chemical	C0942	Diethyl 1,1-Cyclobutanedicarboxylate >97.0%(GC)	3779-29-1	5mL	$33	2026-04-30	Buy
TCI Chemical	C0942	Diethyl 1,1-Cyclobutanedicarboxylate >97.0%(GC)	3779-29-1	25mL	$96	2026-04-30	Buy

Product number	Packaging	Price	Buy
S436178	1 unit	$32.7	Buy
S436178	1g	$29.8	Buy
28690	25ml	$299	Buy
C0942	5mL	$33	Buy
C0942	25mL	$96	Buy

Diethyl 1,1-cyclobutanedicarboxylate Chemical Properties, Uses, Production

Chemical Properties

Colourless Oil

Uses

Diethyl 1,1-cyclobutanedicarboxylate is used as a pharmaceutical intermediate. Used as intermediate in the production of Carboplatin.

Uses

Diethyl cyclobutane-1,1-dicarboxylate may be used in chemical synthesis studies.

Preparation

The preparation of diethyl 1,1-cyclobutanedicarboxylate is as follows:The major product is tetraethy1 1,1,5,5-pentanetetra-carboxylate II with diethyl malonate. To eliminate this side reaction, II was independently prepared by the addition of hydrogen bromide to diethyl allylmalonate (I) and then cyclized to II by treatment with sodium ethylate. The over-all yield from I is about 50%.

QQ截图20221110145508.png

Synthesis

109-64-8

105-53-3

3779-29-1

GENERAL METHOD: Diethyl malonate (2.53 mL, 17 mmol), 1,3-dibromopropane (22 mmol), potassium carbonate (K2CO3, 5.7 g, 42 mmol) and tetrabutylammonium bromide (TBAB, 0.27 g, 0.08 mmol) were added to dry N,N-dimethylformamide (DMF). The reaction mixture was stirred at room temperature for 16 hours. After completion of the reaction, the solvent was removed by rotary evaporator and the residue was extracted three times with ethyl acetate (100 mL). The organic layers were combined, washed with water and then dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated to give diethyl cyclobutyl-1,1-dicarboxylate as a colorless oil (89% yield).

References

[1] Molecules, 2016, vol. 21, # 5,
[2] Journal of Organic Chemistry, 1993, vol. 58, # 27, p. 7709 - 7717
[3] Journal of Fluorine Chemistry, 2000, vol. 102, # 1-2, p. 141 - 146
[4] Journal of Organic Chemistry, 1949, vol. 14, p. 1036
[5] Journal of the Chemical Society, 1887, vol. 51, p. 2

Diethyl 1,1-cyclobutanedicarboxylate synthesis

Synthesis of Diethyl 1,1-cyclobutanedicarboxylate from 1,3-Dibromopropane and Diethyl malonate

Diethyl 1,1-cyclobutanedicarboxylate Preparation Products And Raw materials

Raw materials

1,3-Dibromopropane 4-Bromo-1-butene Potassium carbonate Tetrabutylammomium bromide N,N-Dimethylformamide

Sodium ethoxide Diethyl (3-chloropropyl)malonate 1,3-Propanediol di-p-toluenesulfonate Diethyl malonate

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Preparation Products

Cyclobutanemethanol (Bromomethyl)cyclobutane Trimethylene oxide Pentane-1,1,5,5-tetracarboxylic acid tetraethyl ester 1-(hydroxymethyl)Cyclobutanecarboxylic acid

Cyclobutane-1,1-dicarboxylic acid ethyl ester Diethyl 3-bromopropylmalonate

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Diethyl 1,1-cyclobutanedicarboxylate Suppliers

Global Suppliers ( 326)

Supplier	Tel	Email	Country	ProdList	Advantage
Shandong Vantage Specialty Chemicals Biotechnology Co., Ltd.	13396369453 18678026865	sdfantai@163.com	China	904	58
Zhejiang Karry Pharmachem Co., Ltd.	19157666807	info@karrypharma.com	China	37	58
Zhejiang zetian fine chemical co. LTD	0571-87322520 18957127338	June@zetchem.com	China	382	58
Shandong Qianyuan Polymer Material Co. , Ltd.	18678041314 18765609661	2547772582@qq.com	China	987	58
Wuhan EnTai Technology Development Co,.Ltd	86-27-82330560	2536851935@qq.com	China	346	69
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
3B Pharmachem (Wuhan) International Co.,Ltd.	18930552037	3bsc@sina.com	China	15813	69
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81

Supplier	Advantage
Shandong Vantage Specialty Chemicals Biotechnology Co., Ltd.	58
Zhejiang Karry Pharmachem Co., Ltd.	58
Zhejiang zetian fine chemical co. LTD	58
Shandong Qianyuan Polymer Material Co. , Ltd.	58
Wuhan EnTai Technology Development Co,.Ltd	69
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
3B Pharmachem (Wuhan) International Co.,Ltd.	69
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81

View Latest Price from Diethyl 1,1-cyclobutanedicarboxylate manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-04-04	Diethyl 1,1-cyclobutanedicarboxylate 3779-29-1		1kg	98%	1Ton	Henan Aochuang Chemical Co.,Ltd.
2025-03-07	Diethyl 1,1-cyclobutanedicarboxylate 3779-29-1	$10.00-30.00	50KG	99%	500000kg	Hebei Chuanghai Biotechnology Co., Ltd
2024-07-15	Diethyl 1,1-cyclobutanedicarboxylate 3779-29-1	$1.00	1KG	99%	20t	Shaanxi Dideu Medichem Co. Ltd

Diethyl 1,1-cyclobutanedicarboxylate
3779-29-1
98%
Henan Aochuang Chemical Co.,Ltd.

Diethyl 1,1-cyclobutanedicarboxylate
3779-29-1
$10.00-30.00
99%
Hebei Chuanghai Biotechnology Co., Ltd

Diethyl 1,1-cyclobutanedicarboxylate
3779-29-1
$1.00
99%
Shaanxi Dideu Medichem Co. Ltd

Diethyl 1,1-cyclobutanedicarboxylate Spectrum

Diethyl 1,1-cyclobutanedicarboxylate(3779-29-1)MS Diethyl 1,1-cyclobutanedicarboxylate(3779-29-1)¹HNMR Diethyl 1,1-cyclobutanedicarboxylate(3779-29-1)¹³CNMR Diethyl 1,1-cyclobutanedicarboxylate(3779-29-1)IR1 Diethyl 1,1-cyclobutanedicarboxylate(3779-29-1)Raman

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DIETHYL 1,1-CYCLOBUTANEDICARBOXYLATE 1,1-Cyclobutanedicarboxylic Acid 1,1-Diethyl Ester NSC 9017 1,1-Bis(ethoxycarbonyl)cyclobutane 1,1-Dicarboxylic acid cyclobutane diethylester 1,1-CYCLOBUTANEDICARBOXYLIC ACID DIETHYL ESTER 1,1-DICARBOETHOXYCYCLOBUTANE AKOS BBS-00006459 CYCLOBUTANE-1,1-DICARBOXYLIC ACID DIETHYL ESTER CYCLOBUTANE-1,1-DICARBOXYLIC ACID DIMETHYL ESTER DIETHYL 2,2-TRIMETHYLENEMALONATE Diethyl 1,1-Cyclobutanedicarboxylate > 1,1-decarboxylic acid diethyl cyclobutane Diethl1,1-cyclobutanedicarboxylate DIETHYL CYCLOBUTANE-1,1-DICARBOXYLATE Diethyl 1,1-cyclobutanedicarboxylate, Cyclopropanecarboxylic acid 3779-29-1 23779-29-1 Esters Organic Building Blocks Cyclobutanes & Cyclobutenes Simple 4-Membered Ring Compounds Building Blocks Carbonyl Compounds C10 to C11 Building Blocks C10 to C11 Carbonyl Compounds Chemical Synthesis Esters Organic Building Blocks Pharmaceutical Intermediates Intermediates & Fine Chemicals Pharmaceuticals Cyclobutanes & Cyclobutenes Simple 4-Membered Ring Compounds Cycloalkanes