trimethyl borate

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|Watchedfields = changed

|verifiedrevid = 470615177

|ImageFile_Ref = {{chemboximage|correct|??}}

|ImageFile = Structural formula of trimethyl borate.svg

|ImageSize = 200px

|ImageFile1 = Trimethyl-borate-3D-vdW.png

|IUPACName = Trimethyl borate

|OtherNames = Trimethoxyborane

|Section1 = {{Chembox Identifiers

|ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

|ChemSpiderID = 8157

|InChI = 1/C3H9BO3/c1-5-4(6-2)7-3/h1-3H3

|InChIKey = WRECIMRULFAWHA-UHFFFAOYAY

|StdInChI_Ref = {{stdinchicite|correct|chemspider}}

|StdInChI = 1S/C3H9BO3/c1-5-4(6-2)7-3/h1-3H3

|StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

|StdInChIKey = WRECIMRULFAWHA-UHFFFAOYSA-N

|CASNo_Ref = {{cascite|correct|CAS}}

|CASNo = 121-43-7

|UNII_Ref = {{fdacite|correct|FDA}}

|UNII = 82U64J6F5N

|PubChem = 8470

|ChEBI_Ref = {{ebicite|correct|EBI}}

|ChEBI = 38913

|SMILES = O(B(OC)OC)C

|EINECS = 204-468-9

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|Section2 = {{Chembox Properties

|C = 3 | H = 9 | O = 3 | B = 1

|Appearance = colourless liquid

|Density = 0.932 g/ml

|MeltingPtC = −34

|BoilingPtC = 68 to 69

|Solubility = decomposition

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|Section3 = {{Chembox Hazards

|MainHazards = flammable

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|Section4 = {{Chembox Related

|OtherCations = Trimethyl phosphite
Tetramethyl orthosilicate

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Trimethyl borate is the organoboron compound with the formula B(OCH₃)₃. It is a colourless liquid that burns with a green flame.{{Ullmann|author=Robert J. Brotherton |author2=C. Joseph Weber |author3=Clarence R. Guibert |author4=John L. Little |title=Boron Compounds|year=2000|doi-10.1002/14356007.a04_309}} It is an intermediate in the preparation of sodium borohydride and is a popular reagent in organic chemistry. It is a weak Lewis acid (AN = 23, Gutmann-Beckett method).{{cite journal |journal=Polymer |date=September 1996 |volume=37 |issue=20 |pages=4629-4631 |last1=Beckett |first1=M. A. |last2=Strickland |first2=G. C. |last3=Holland |first3=J. R. |last4=Varma |first4=K. S. |title=A convenient n.m.r. method for the measurement of Lewis acidity at boron centres: correlation of reaction rates of Lewis acid initiated epoxide polymerizations with Lewis acidity |doi=10.1016/0032-3861(96)00323-0 }}

File:Boratflamme.jpg

Borate esters are prepared by heating boric acid or related boron oxides with alcohols under conditions where water is removed by azeotropic distillation.