ChemicalBook >> CAS DataBase List >>1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL structure

CAS No.: 569343-09-5

Chemical Name:: 1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL

Synonyms: FL-B;FL-BE;Fluorene-2-boronic acid pyranoside;1,3,2-Dioxaborolane,2-(9,9-dimethyl-9H-fluoren-2-;9,9-Dimethylfluorene-2-boronicacidpinacolester,95%;9,9-DiMethylfluorene-2-boronic acid pinacol ester, 95%;2-(9,9-DIMETHYL-9H-FLUOROEN-2-YL)-4,4,5,5-TETRAMETHYL-1,3;2-(9,9-dimethylfluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxa...;9,9-Dimethyl-2-(4,4',5,5'-tetramethyl-1,3,2-dioxaborolano)fluorene;2-(9,9-dimethylfluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

CBNumber:: CB9836662

Molecular Formula:: C21H25BO2

Molecular Weight:: 320.23

MDL Number:: MFCD08704229

MOL File:: 569343-09-5.mol

MSDS File:: SDS

Last updated:2025-08-08 17:45:00

Product description	Number	Pack Size	Price
9,9-Dimethylfluorene-2-boronic acid pinacol ester 95%	729280	1g	$81
2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane >98.0%(HPLC)(T)	D5018	1g	$39
2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane >98.0%(HPLC)(T)	D5018	5g	$133
1,3,2-Dioxaborolane,2-(9,9-dimethyl-9h-fluoren-2-yl)-4,4,5,5-tetramethyl	D485278	100mg	$45
2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane ≥98.0%	CS-0041017	10g	$46
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1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL Properties

Melting point	134.0 to 138.0 °C
Boiling point	443.1±24.0 °C(Predicted)
Density	1.09±0.1 g/cm3(Predicted)
storage temp.	under inert gas (nitrogen or Argon) at 2-8°C
form	powder to crystal
color	White to Almost white
InChI	InChI=1S/C21H25BO2/c1-19(2)17-10-8-7-9-15(17)16-12-11-14(13-18(16)19)22-23-20(3,4)21(5,6)24-22/h7-13H,1-6H3
InChIKey	DAZFRJAIIUPRQZ-UHFFFAOYSA-N
SMILES	O1C(C)(C)C(C)(C)OB1C1C=CC2C3=C(C(C)(C)C=2C=1)C=CC=C3
UNSPSC Code	12352103
NACRES	NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H413

Precautionary statements

P501-P273

WGK Germany

HS Code

2931900090

NFPA 704

	0
0		0

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL price More Price(17)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	729280	9,9-Dimethylfluorene-2-boronic acid pinacol ester 95%	569343-09-5	1g	$81	2023-06-20	Buy
TCI Chemical	D5018	2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane >98.0%(HPLC)(T)	569343-09-5	1g	$39	2025-07-31	Buy
TCI Chemical	D5018	2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane >98.0%(HPLC)(T)	569343-09-5	5g	$133	2025-07-31	Buy
TRC	D485278	1,3,2-Dioxaborolane,2-(9,9-dimethyl-9h-fluoren-2-yl)-4,4,5,5-tetramethyl	569343-09-5	100mg	$45	2021-12-16	Buy
ChemScene	CS-0041017	2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane ≥98.0%	569343-09-5	10g	$46	2021-12-16	Buy

Product number	Packaging	Price	Buy
729280	1g	$81	Buy
D5018	1g	$39	Buy
D5018	5g	$133	Buy
D485278	100mg	$45	Buy
CS-0041017	10g	$46	Buy

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL Chemical Properties,Uses,Production

Uses

9,9-Dimethylfluorene-2-boronic acid pinacol ester can be used in the synthesis of 1,2-diphenylindolizine derivatives for potential usage in organic light emitting diodes (OLEDs). It can also be used in the synthesis of pyrene-fluorene based chromophores for applications in photocatalysis and organic electronic devices.

Synthesis

28320-31-2

73183-34-3

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL

569343-09-5

Under nitrogen protection, 2-bromo-9,9-dimethylfluorene (100 g, 366 mmol, purchased from Sigma Aldrich Co., Ltd.) was dissolved in dimethylformamide (DMF, 1.1 L). Subsequently, bis(pinacolato)diboron (112 g, 439 mmol), [1,1'-bis(diphenylphosphino)ferrocene]palladium(II) dichloride (2.99 g, 3.66 mmol) and potassium acetate (108 g, 1,098 mmol) were added to the solution. The reaction mixture was heated to 150 °C and refluxed for 5 hours. After completion of the reaction, water was added to the reaction solution, the mixture was filtered and dried in a vacuum oven. The resulting residue was separated and purified by fast column chromatography to afford the target product fluorene-2-boronic acid katanol ester (102 g, 87% yield). High resolution mass spectrometry (HRMS, 70 eV, EI+): m/z calculated value of C21H25BO2[M]+ was 320.1948, measured value was 320. elemental analysis results: C, 79%; H, 8%.

References

[1] Patent: US2017/373255, 2017, A1. Location in patent: Paragraph 0164; 0165; 0166; 0167
[2] Patent: KR2017/88601, 2017, A. Location in patent: Paragraph 0160-0165
[3] Patent: WO2013/180376, 2013, A1. Location in patent: Paragraph 138; 139; 140
[4] Patent: US9825230, 2017, B2. Location in patent: Page/Page column 34

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL Preparation Products And Raw materials

Raw materials

2-Bromo-9,9-dimethylfluorene Bis(pinacolato)diboron 9,9-Dimethyl-2-iodofluorene Potassium Acetate N,N-Dimethylformamide

[1,1'-Bis(diphenylphosphino)ferrocene]dichloropalladium(II)

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Preparation Products

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL Suppliers

Global( 123)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20175	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13456	58
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
AB PharmaTech,LLC	323-480-4688	sales@acrospharmatech.com	United States	989	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29852	58
Beijing Yanhua Jilian Opto-Electronic Technology Co., Ltd.	(+86)13146479469		CHINA	315	58
Zhengzhou HQ Material CO.,LTD.	+86-371-55919009 +8615225108189	sale1@hqmat.com	China	1001	58
BAYNOE CHEM CO.,LTD	+86-21-34783353 +8615000719740	baynoe@baynoe.com	CHINA	934	58
Richest Group Ltd	18017061086	oled@richest-group.com	CHINA	5600	58
Fuxin Pharmaceutical	+86-021-021-50872116 +8613122107989	contact@fuxinpharm.com	China	10035	58

Supplier	Advantage
Henan Fengda Chemical Co., Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
ATK CHEMICAL COMPANY LIMITED	60
AB PharmaTech,LLC	55
career henan chemical co	58
Beijing Yanhua Jilian Opto-Electronic Technology Co., Ltd.	58
Zhengzhou HQ Material CO.,LTD.	58
BAYNOE CHEM CO.,LTD	58
Richest Group Ltd	58
Fuxin Pharmaceutical	58

View Lastest Price from 1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-09-25	9,9-Dimethylfluorene-2-boronic acid pinacol ester 569343-09-5	US $200.00-1.00 / KG	1KG	99%, 99.5% Sublimated	g-kg-tons, free sample is available	Henan Fengda Chemical Co., Ltd
2025-07-02	1,3,2-Dioxaborolane, 2-(9,9-dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl- 569343-09-5	US $0.00 / KG	1KG	98.00%	150KG /month	Shanghai Daken Advanced Materials Co.,Ltd
2019-07-06	1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL 569343-09-5	US $2.00 / kg	1kg	99%	ask	Career Henan Chemical Co

9,9-Dimethylfluorene-2-boronic acid pinacol ester
569343-09-5
US $200.00-1.00 / KG
99%, 99.5% Sublimated
Henan Fengda Chemical Co., Ltd

1,3,2-Dioxaborolane, 2-(9,9-dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-
569343-09-5
US $0.00 / KG
98.00%
Shanghai Daken Advanced Materials Co.,Ltd

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL
569343-09-5
US $2.00 / kg
99%
Career Henan Chemical Co

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL Spectrum

1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL(569343-09-5)¹HNMR

569343-09-5(1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL)Related Search:

1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] (2,7-BIS(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-9,9-DIOCTYLFLUORENE) 9,9-DiMethylfluorene-3-boronic acid pinacol ester 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 9,9-Spirodifluorene-2-Boronic acid pinacol ester

4 - boric acid pinacol ester - 9, 9 - dimethyl fluorene 9,9-Spirodifluorene-3-Boronic acid pinacol ester 9,9-diphenyl-9H-fluoreN-4-ylboronicacid 4-Pinacol ester-9,9-dipehnylfluorene 9,9-diphenyl-fluoren-3-boronic acid pinacol ester

9,9-Dimethylfluorene 9,9-Dimethyl-9H-fluoren-2-yl-boronic acid 1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL 3,4-Dimethylphenylboronic acid 3-ISOPROPYLBENZENEBORONIC ACID ETHYLENE GLYCOL ESTER

3-BENZYLPHENYLBORONIC ACID PINACOL ESTER 4-BIPHENYLBORONIC ACID, PINACOL ESTER M-T-BUTYLPHENYLBORONIC ACID

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2-(9,9-DIMETHYL-9H-FLUOROEN-2-YL)-4,4,5,5-TETRAMETHYL-1,3 1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE 1,3,2-Dioxaborolane,2-(9,9-dimethyl-9H-fluoren-2- 2-(9,9-DIMETHYL-9H-FLUOROEN-2-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE 1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL- (9CI) 9,9-DiMethylfluorene-2-boronic acid pinacol ester, 95% FL-BE 9,9-Dimethyl-2-(4,4',5,5'-tetramethyl-1,3,2-dioxaborolano)fluorene 2-(9,9-dimethylfluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 1,3,2-Dioxaborolane, 2-(9,9-Dimethy-9H-fluoren-2-yl)-4,4,5,5-tetramethyl 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolane-2-yl)-9,9-dimethylfluoren FL-B 9,9-Dimethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)fluorene 9,9-Dimethylfluorene-2-boronicacidpinacolester,95% 9,9-Dimethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolane-2-yl)-9H-fluorene 2-(9,9-dimethylfluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxa... 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolane-2-yl)-9,9-dimethyl-9H-fluorene 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolane-2-yl)-9,9'-dimethylfluoren 2-(9,9-Dimethyl-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane，98% Fluorene-2-boronic acid pyranoside 569343-09-5 C21H25BO2 Boron Compounds