Welcome to LookChem.com Sign In|Join Free


  • or


Post Buying Request

55718-76-8 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

55718-76-8 Usage


B-Chlorocatecholborane can be used:To prepare 2-arachidonoylglycerol by acetal cleavage of cis-arachidonoylbenzylidene glycerol.To prepare metal boryl complexes (Rh and Ir complexes) through oxidative addition.To remove the trityl group in one of the key steps for the synthesis of (?)-dictyostatin.

General Description

B-Chlorocatecholborane is a boron reagent and a Lewis acid, known to facilitate the borylative cyclization of alkynes to yield the borylated heterocycles. It is also used in the preparation of lactones, and thiophenes.

Check Digit Verification of cas no

The CAS Registry Mumber 55718-76-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,1 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 55718-76:
148 % 10 = 8
So 55718-76-8 is a valid CAS Registry Number.

55718-76-8 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Aldrich

  • (362700)  B-Chlorocatecholborane  97%

  • 55718-76-8

  • 362700-5G

  • 1,434.42CNY

  • Detail



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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017


1.1 GHS Product identifier

Product name <i>B</i>-Chlorocatecholborane

1.2 Other means of identification

Product number -
Other names 2-chloro-1,3,2-benzodioxaborole

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:55718-76-8 SDS

55718-76-8Relevant articles and documents

Cationic dihydride boryl and dihydride silyl osmium(IV) NHC complexes: A marked diagonal relationship

Buil, Maria L.,Esteruelas, Miguel A.,Fernandez, Israel,Izquierdo, Susana,Onate, Enrique

, p. 2744 - 2752 (2013)

The complex [OsCl(η6-p-cymene)(IPr)]OTf (1; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolylidene, OTf = trifluoromethanesulfonate) reacts with pinacolborane (HBpin) and catecholborane (HBcat) to give the dihydride boryl osmium(IV) derivatives [OsH2(Bpin)(η6- p-cymene)(IPr)]OTf (2) and [OsH2(Bcat)(η6-p-cymene) (IPr)]OTf (3), which undergo hydrolysis to afford the trihydride [OsH 3(η6-p-cymene)(IPr)]OTf (4). In agreement with the boron-silicon diagonal relationship, complex 1 also reacts with silanes, HSiR3. The reactions lead to the dihydride silyl species [OsH 2(SiR3)(η6-p-cymene)(IPr)]OTf (SiR 3 = SiPh3 (5), SiEt3 (6), SiHPh2 (7)), which also undergo hydrolysis to yield 4. Complexes 2 and 5 have been characterized by X-ray diffraction analysis. Their four-legged piano-stool geometries with transoid hydride ligands are similar. In solution, the arene rotates over the remaining four ligands. The activation barrier of the process depends upon the size of the boryl or silyl groups. The nature of the Os-B and Os-Si interactions has been investigated by means of computational methods. Both of them are σ bonds with small or negligible π back-donation from the metal to the ligands.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)


What can I do for you?
Get Best Price

Get Best Price for 55718-76-8