ChemicalBook >> CAS DataBase List >>1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene

1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene

1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene structure

CAS No.: 307531-75-5

Chemical Name:: 1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene

Synonyms: (E)-1-Pentene-1;Bis(pinacolcyclicester);(E)-1-Pentene-1,2-diboronicacid;(E)-1-PENTENE-1,2-DIBORONIC ACID BIS(PINACOL) ESTER;(E)-1-Pentene-1,2-diboronic acid bis(pinacol) ester;1-cis-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxoboralan-2-yl)pentene;1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaboralan-2-yl)pentene;1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene;(Z)-2,2'-(pent-1-ene-1,2-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane);2,2'-[(1Z)-1-Propyl-1,2-ethenediyl]bis[4,4,5,5-tetramethyl-1,3,2-dioxaborolanel

CBNumber:: CB4294768

Molecular Formula:: C17H32B2O4

Molecular Weight:: 322.06

MDL Number:: MFCD03453052

MOL File:: 307531-75-5.mol

MSDS File:: SDS

Last updated:2026-09-12 18:52:44

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1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene Properties

Melting point	301-303
Boiling point	301-303 °C(lit.)
Density	0.954 g/mL at 25 °C(lit.)
refractive index	n20/D 1.455(lit.)
Flash point	169 °F
InChI	1S/C17H32B2O4/c1-10-11-13(19-22-16(6,7)17(8,9)23-19)12-18-20-14(2,3)15(4,5)21-18/h12H,10-11H2,1-9H3/b13-12-
InChIKey	MXQDNQSRLNMUOP-SEYXRHQNSA-N
SMILES	CCC\C(=C\B1OC(C)(C)C(C)(C)O1)B2OC(C)(C)C(C)(C)O2
UNSPSC Code	12352103
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H227

Precautionary statements

P210e-P280a-P370+P378a-P403+P235-P501a

PPE

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

Hazard Codes

Safety Statements

24/25

RIDADR

NA 1993 / PGIII

WGK Germany

Hazard Note

Irritant

Storage Class

10 - Combustible liquids not in Storage Class 3

NFPA 704

	2
0		0

1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene price More Price(3)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	529907	(E)-1-Pentene-1,2-diboronic acid bis(pinacol) ester	307531-75-5	1g	$100	2023-06-20	Buy
AHH	MT-28380	1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene 97%		10g	$270	2026-05-26	Buy
American Custom Chemicals Corporation	ING0003366	1-CIS-1,2-BIS(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)PENTENE 95.00%	307531-75-5	1G	$701.94	2021-12-16	Buy

Product number	Packaging	Price	Buy
529907	1g	$100	Buy
MT-28380	10g	$270	Buy
ING0003366	1G	$701.94	Buy

1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene Chemical Properties, Uses, Production

Uses

(E)-1-Pentene-1,2-diboronic acid bis(pinacol) ester can be used as a reactant in the stereoselective synthesis of γ-boryl substituted homoallylic alcohols by reacting with aromatic aldehydes via Ru-catalyzed double bond transposition reaction.

General Description

(E)-1-Pentene-1,2-diboronic acid bis(pinacol) ester is an alkenyl boronate ester that can be utilized for Suzuki-Miyaura cross-coupling reaction. Boronate esters are air- and chromatography-stable.

1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene Preparation Products And Raw materials

Raw materials

Preparation Products

1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene Suppliers

Global Suppliers ( 36)

Supplier	Tel	Email	Country	ProdList	Advantage
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Wuhan Chemwish Technology Co., Ltd	86-027-67849912	sales@chemwish.com	China	35884	56
Pure Chemistry Scientific Inc.	001-857-928-2050 or 1-888-588-9418	sales@chemreagents.com	United States	10174	62
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
Sigma-Aldrich	021-61415566 800-8193336	orderCN@merckgroup.com	China	51389	80
Wuhan Chemwish Technology Co.， Ltd	027-67849912	sales@chemwish.com	China	9144	60
Amadis Chemical Company Limited	571-89925085	sales@amadischem.com	China	131885	58
Guangdong wengjiang Chemical Reagent Co., Ltd.	0751-2886750 13927877953	3005811397@qq.com	China	13282	58

Supplier	Advantage
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Alfa Aesar	84
Energy Chemical	61
Wuhan Chemwish Technology Co., Ltd	56
Pure Chemistry Scientific Inc.	62
Shanghai Hanhong Scientific Co.,Ltd.	64
Sigma-Aldrich	80
Wuhan Chemwish Technology Co.， Ltd	60
Amadis Chemical Company Limited	58
Guangdong wengjiang Chemical Reagent Co., Ltd.	58

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(E)-1-PENTENE-1,2-DIBORONIC ACID BIS(PINACOL) ESTER (E)-1-Pentene-1,2-diboronicacid 1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaboralan-2-yl)pentene Bis(pinacolcyclicester) 1-cis-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxoboralan-2-yl)pentene 2,2μ-[(1Z)-1-Propyl-1,2-ethenediyl]bis[4,4,5,5-tetramethyl-1,3,2-dioxaborolane], 1-[cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)] pentene 2,2'-[(1Z)-1-Propyl-1,2-ethenediyl]bis[4,4,5,5-tetramethyl-1,3,2-dioxaborolanel (E)-1-Pentene-1 4,4,5,5-tetramethyl-2-[1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pent-1-en-2-yl]-1,3,2-dioxaborolane 1,3,2-Dioxaborolane, 2,2'-[(1Z)-1-propyl-1,2-ethenediyl]bis[4,4,5,5-tetramethyl- (9CI) (Z)-2,2'-(pent-1-ene-1,2-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (E)-1-Pentene-1,2-diboronic acid bis(pinacol) ester 1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene 307531-75-5 C17H32B2O4 Alkenyl Boronate Esters Boronic Acids and Derivatives Organometallic Reagents