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256652-04-7

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256652-04-7 Usage

Chemical Properties

White solid

Uses

It is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuffs.

Check Digit Verification of cas no

The CAS Registry Mumber 256652-04-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,6,5 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 256652-04:
(8*2)+(7*5)+(6*6)+(5*6)+(4*5)+(3*2)+(2*0)+(1*4)=147
147 % 10 = 7
So 256652-04-7 is a valid CAS Registry Number.
InChI:InChI=1/C16H19BO2/c1-15(2)16(3,4)19-17(18-15)14-10-9-12-7-5-6-8-13(12)11-14/h5-11H,1-4H3

256652-04-7 Well-known Company Product Price

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  • TCI America

  • (T3298)  4,4,5,5-Tetramethyl-2-(2-naphthyl)-1,3,2-dioxaborolane  >98.0%(GC)(T)

  • 256652-04-7

  • 1g

  • 490.00CNY

  • Detail
  • TCI America

  • (T3298)  4,4,5,5-Tetramethyl-2-(2-naphthyl)-1,3,2-dioxaborolane  >98.0%(GC)(T)

  • 256652-04-7

  • 5g

  • 1,890.00CNY

  • Detail
  • Alfa Aesar

  • (H64671)  Naphthalene-2-boronic acid pinacol ester, 97%   

  • 256652-04-7

  • 1g

  • 235.0CNY

  • Detail
  • Alfa Aesar

  • (H64671)  Naphthalene-2-boronic acid pinacol ester, 97%   

  • 256652-04-7

  • 5g

  • 980.0CNY

  • Detail

256652-04-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,4,5,5-tetramethyl-2-naphthalen-2-yl-1,3,2-dioxaborolane

1.2 Other means of identification

Product number -
Other names Naphthalene-2-boronic acid pinacol ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:256652-04-7 SDS

256652-04-7Relevant articles and documents

Cross-Coupling Reactions of Aryl Halides with Primary and Secondary Aliphatic Alcohols Catalyzed by an O,N,N-Coordinated Nickel Complex

Hashimoto, Toru,Shiota, Keisuke,Funatsu, Kei,Yamaguchi, Yoshitaka

supporting information, p. 1625 - 1630 (2021/01/26)

A synthesis of alkyl aryl ethers was achieved via the cross-coupling of aryl halides with primary and secondary aliphatic alcohols catalyzed by a bench-stable nickel complex supported by a monoanionic O,N,N-tridentate ligand. This nickel-catalyzed reaction proceeds smoothly in the absence of a phosphine ligand, affording alkyl aryl ethers in moderate to good yields. (Figure presented.).

Visible-Light-Induced Ni-Catalyzed Radical Borylation of Chloroarenes

Tian, Ya-Ming,Guo, Xiao-Ning,Krummenacher, Ivo,Wu, Zhu,Nitsch, J?rn,Braunschweig, Holger,Radius, Udo,Marder, Todd B.

supporting information, p. 18231 - 18242 (2020/11/02)

A highly selective and general photoinduced C-Cl borylation protocol that employs [Ni(IMes)2] (IMes = 1,3-dimesitylimidazoline-2-ylidene) for the radical borylation of chloroarenes is reported. This photoinduced system operates with visible light (400 nm) and achieves borylation of a wide range of chloroarenes with B2pin2 at room temperature in excellent yields and with high selectivity, thereby demonstrating its broad utility and functional group tolerance. Mechanistic investigations suggest that the borylation reactions proceed via a radical process. EPR studies demonstrate that [Ni(IMes)2] undergoes very fast chlorine atom abstraction from aryl chlorides to give [NiI(IMes)2Cl] and aryl radicals. Control experiments indicate that light promotes the reaction of [NiI(IMes)2Cl] with aryl chlorides generating additional aryl radicals and [NiII(IMes)2Cl2]. The aryl radicals react with an anionic sp2-sp3 diborane [B2pin2(OMe)]- formed from B2pin2 and KOMe to yield the corresponding borylation product and the [Bpin(OMe)]?- radical anion, which reduces [NiII(IMes)2Cl2] under irradiation to regenerate [NiI(IMes)2Cl] and [Ni(IMes)2] for the next catalytic cycle.

Rhodium-catalyzed borylation of aryl 2-pyridyl ethers through cleavage of the carbon-oxygen bond: Borylative removal of the directing group

Kinuta, Hirotaka,Tobisu, Mamoru,Chatani, Naoto

supporting information, p. 1593 - 1600 (2015/03/05)

The rhodium-catalyzed reaction of aryl 2-pyridyl ethers with a diboron reagent results in the formation of arylboronic acid derivatives via activation of the C(aryl)-O bonds. The straightforward synthesis of 1,2-disubstituted arenes was enabled through catalytic ortho C-H bond functionalization directed by the 2-pyridyloxy group followed by substitution of this group with a boryl group. Several control experiments revealed that the presence of a sp2 nitrogen atom at the 2-position of the substrate and the use of a boron-based reagent were crucial for the activation of the relatively inert C(aryl)-O bond of aryl 2-pyridyl ethers.

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