32999-14-7

Basic information

• Product Name: 2-cyclopentyl-1,3,2-benzodioxaborole
• CAS NO: 32999-14-7
• Molecular Formula: C₁₁H₁₃BO₂
• Molecular Weight: 188.0307
• Mol File: 32999-14-7.mol

Chemical Properties

• Boiling Point: 259.7°C at 760 mmHg
• Flash Point: 110.9°C
• Density: 1.1g/cm³
• Vapor Pressure: 0.0207mmHg at 25°C
• Refractive Index: 1.534
• CAS DataBase Reference: 2-cyclopentyl-1,3,2-benzodioxaborole(CAS DataBase Reference)
• NIST Chemistry Reference: 2-cyclopentyl-1,3,2-benzodioxaborole(32999-14-7)
• EPA Substance Registry System: 2-cyclopentyl-1,3,2-benzodioxaborole(32999-14-7)

Safety Data

• Hazardous Substances Data: 32999-14-7(Hazardous Substances Data)

Upstream product

• 13826-27-2 2,2'-bis(1,3,2-benzodioxaborole) 
• 120-80-9 benzene-1,2-diol 
• 63076-51-7 cyclopentane boronic acid 
• 142-29-0 cyclopentene 
• 274-07-7 benzo[1,3,2]dioxaborole 
• 37737-62-5 tris(catecholato)diboron 

Downstream Products

• 139100-48-4 1-(cyclopentyloxy)-2,2,6,6-tetramethylpiperidine 

Relevant articles and documents

Light-Mediated Sulfur-Boron Exchange

Interaction of sulfides bearing a tetrafluoropyridinyl group with bis(catecholato)diboron followed by treatment with pinacol and triethylamine affording pinacol boronic esters is described. The reaction is promoted by an organic photocatalyst (3DPA2FBN) u

A new mild radical route to 3-substituted maleimides using organoboroles

A new, mild, radical route for the synthesis of 3-substituted maleimides has been developed. This new method incorporates alkene hydroboration, conjugate addition-aminoxylation and TEMPO-H elimination in a one-pot procedure, using cheap, readily available

Mechanism and optimisation of the homoboroproline bifunctional catalytic asymmetric aldol reaction: Lewis acid tuning through in situ esterification

The use of homoboroproline as a bifunctional catalyst in the asymmetric aldol reaction has been investigated mechanistically, particularly with respect to tuning the Lewis acidity of boron by in situ esterification with mildly sigma-electron withdrawing diols such as hydrobenzoin and tartrate esters. The stability of simple cyclohexyl and cyclopentyl boronate diol esters shows that the 5-ring boronate esters are more stable, which sheds light on the mode of action of esterified homoboroproline catalyst in the enamine-mediated aldol reaction, which is also studied by NMR. The result is reaction optimisation to provide an efficient aldol reaction and a proposed mechanistic proposal. The Royal Society of Chemistry 2012.