2118-02-7

Basic information

• Product Name: BIS(PENTAFLUOROPHENYL)BORINIC ACID
• Synonyms: 9-(3,4,5-trimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-[2]benzofuro[5,6-f][1,3]benzodioxol-8-one;9-(3,4,5-trimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-isobenzofuro[5,6-f][1,3]benzodioxol-8-one
• CAS NO: 2118-02-7
• Molecular Formula: C₁₂HBF₁₀O
• Molecular Weight: 361.93
• Mol File: 2118-02-7.mol
• Article Data: 14

Chemical Properties

• Melting Point: 276-280 °C(lit.)
• Appearance: /
• CAS DataBase Reference: BIS(PENTAFLUOROPHENYL)BORINIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: BIS(PENTAFLUOROPHENYL)BORINIC ACID(2118-02-7)
• EPA Substance Registry System: BIS(PENTAFLUOROPHENYL)BORINIC ACID(2118-02-7)

Safety Data

• Safety Statements: 22-24/25
• WGK Germany: 3
• Hazardous Substances Data: 2118-02-7(Hazardous Substances Data)

Upstream product

• 518293-08-8 bis(pentafluorophenyl)boronic acid trimer 
• 2720-03-8 bis(pentafluorophenyl)boron chloride 
• 7732-18-5 water 
• 262607-62-5 tetrakis(pentafluorophenyl)diboroxane 
• 797057-37-5 H₂O((C₆F₅)2BOH)3 
• 223769-13-9 1,2-C₆F₄(B(C(C₆F₅)2)2 
• 119-61-9 benzophenone 
• 1109-15-5 tris(pentafluorophenyl)borate 
• 1333-74-0 hydrogen 
• 10294-34-5 boron trichloride 
• 5419-55-6 Triisopropyl borate 
• 344-04-7 bromopentafluorobenzene 
• 879-05-0 2,3,4,5,6-pentafluorophenylmagnesium bromide 
• 148892-98-2 phenylbis(pentafluorophenyl)borane 

Downstream Products

• 885697-80-3 (C₆F₅)2BOC(C₂H₅)NHB(C₆F₅)2OH 
• 936259-39-1 [(C₆F₅)2B(OH₂)2]⁽¹⁺⁾ 
• 936259-38-0 (C₆F₅)2BOB(C₆F₅)2(OC₄H₈) 
• 1059574-25-2 bis(pentafluorophenyl)boronic acid, methyl ester 

Relevant articles and documents

Bis(pentafluorophenyl)borinic acid: A cyclic trimer in the solid state and a monomer, with hindered rotation around the B-OH bond, in solution

The title molecule in the solid state exists as a cyclic trimer, with B-O(H)-B bridges and a cyclo-hexane-like structure (C2 twist-boat conformation); dissolution in toluene-d8 affords the B(C6F5)2OH monomer, in which the low-temperature 19F NMR data reveal restricted rotation of the OH substituent around the Ar2B-OH bond (Ea = 39 kJ mol-1), as a result of the partial double-bond character of this interaction.

The preparation of pentafluorophenyldihaloboranes from pentafluorophenylmercurials C6F5HgR and BX3: the dramatic dependence of the reaction direction on the ligand R

Abstract: In search of convenient preparations of C6F5BX2 (X = Cl, Br), reactions of C6F5HgR (R = C6F5, C6H5, C2H5, Br and Cl) with BX3 were studied. Under the action of BCl3 the order of the C–Hg bond cleavage is C6F5Hg–C6H5 > C6F5–HgC2H5 > C6F5–HgC6F5 >> C6F5–HgCl. With more reactive BBr3 the sequence is C6F5Hg–C6H5 > C6F5–HgC2H5 ~ C6F5Hg–C2H5 > C6F5–HgC6F5 ≥ C6F5–HgBr. During the study we found the simple way to alkyldibromoboranes which is presented by the preparation of C2H5BBr2 from C2H5HgBr and BBr3. It is the second example of synthesis of alkylmercury derivative in an addition to the earlier reported formation of cyclopropylmercurials from di(cyclopropyl)mercury and BX3. Graphic abstract: [Figure not available: see fulltext.].

Polymer Meets Frustrated Lewis Pair: Second-Generation CO2-Responsive Nanosystem for Sustainable CO2 Conversion

Frustrated Lewis pairs (FLP), a couple comprising a sterically encumbered Lewis acid and Lewis base, can offer latent reactivity for activating inert gas molecules. However, their use as a platform for fabricating gas-responsive materials has not yet developed. Merging the FLP concept with polymers, we report a new generation CO2-responsive system, differing from the first-generation ones based on an acid–base equilibrium mechanism. Two complementary Lewis acidic and basic block copolymers, installing bulky borane- and phosphine-containing blocks, were built as the macromolecular FLP. They can bind CO2 to drive micellar formation, in which CO2 as a cross-linker bridges the block chains. This dative bonding endows the assembly with ultrafast response (2 can function as nanocatalysts for recyclable C1 catalysis, opening a new direction of sustainable CO2 conversion.