343:
338:
is typically added. Borate esters are volatile and can be purified by distillation. This procedure is used for analysis of trace amounts of borate and for analysis of boron in steel. Like all boron compounds, alkyl borates burn with a characteristic green flame. This property is used to determine the
743:
M.A. Beckett, G.C. Strickland, J.R. Holland, and K.S. Varma, "A convenient NMR method for the measurement of Lewis acidity at boron centres: correlation of reaction rates of Lewis acid initiated epoxide polymerizations with Lewis acidity",
506:
632:
329:
196:
765:
Li, W.; Nelson, D. P.; Jensen, M. S.; Hoerrner, R. S.; Cai, D.; Larsen, R. D.; Reider, P. J. (2002). "An
Improved Protocol for the Preparation of 3-Pyridyl- and Some Arylboronic Acids".
399:
514:
204:
725:
697:
661:
Brown, Herbert C.; Mead, Edward J.; Shoaf, Charles J. (1956). "Convenient
Procedures for the Preparation of Alkyl Borate Esters".
98:
368:
and can initiate epoxide polymerization reactions. The Lewis acidity of orthoborate esters, as determined by the
361:
such as sugars and the reaction with mannitol forms the basis of a titrimetric analytical method for boric acid.
342:
826:
369:
43:
39:
393:
for Suzuki couplings: Unsymmetrical borate esters are prepared from alkylation of trimethyl borate:
753:
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31:
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820:
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59:
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47:
17:
89:
674:
774:
716:
Vogel's
Textbook of Macro and Semimicro Qualitative Inorganic Analysis
501:{\displaystyle {\ce {ArMgBr + B(OCH3)3 -> MgBrOCH3 + ArB(OCH3)2}}}
688:
Mendham, J.; Denney, R. C.; Barnes, J. D.; Thomas, M. J. K. (2000),
341:
55:
627:{\displaystyle {\ce {ArB(OCH3)2 + 2H2O -> ArB(OH)2 + 2HOCH3}}}
358:
324:{\displaystyle {\ce {3 B(OH)3 + 3 ROH -> B3O3(OR)3 + 6 H2O}}}
191:{\displaystyle {\ce {B(OH)3 + 3 ROH -> B(OR)3 + 3 H2O}}}
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692:(6th ed.), New York: Prentice Hall, p. 666,
42:
which are conveniently prepared by the stoichiometric
788:
R. L. Kidwell; M. Murphy & S. D. Darling (1969).
517:
402:
207:
101:
357:Borate esters form spontaneously when treated with
713:
626:
500:
323:
190:
27:Organic compounds of the form B(OR)₃ or B₃O₃(OR)₃
8:
339:presence of boron in qualitative analysis.
334:A dehydrating agent, such as concentrated
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54:. There are two main classes of borate
690:Vogel's Quantitative Chemical Analysis
712:Vogel, Arthur I.; Svehla, G. (1979),
7:
364:Metaborate esters show considerable
349:is a popular borate ester used in
88:. Metaborates contain 6-membered
25:
754:doi: 10.1016/0032-3861(96)00323-0
720:(5th ed.), London: Longman,
790:"Phenols: 6-Methoxy-2-naphthol"
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389:, is used as a precursor to
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809:, vol. 10, p. 80
637:These esters hydrolyze to
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370:Gutmann-Beckett method
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325:
192:
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372:, is relatively low.
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44:condensation reaction
40:organoboron compounds
641:, which are used in
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807:Collected Volumes
795:Organic Syntheses
775:10.1021/jo025792p
669:(15): 3613–3614.
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32:organic chemistry
16:(Redirected from
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732:Internet Archive
730:– via the
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347:Trimethyl borate
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727:0-582-44367-9
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639:boronic acids
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36:borate esters
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767:J. Org. Chem
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60:orthoborates
35:
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18:Borate ester
71:metaborates
649:References
48:boric acid
577:⟶
445:⟶
248:⟶
138:⟶
821:Category
746:Polymer,
90:boroxine
52:alcohols
449:MgBrOCH
92:rings.
748:1996,
724:
696:
405:ArMgBr
56:esters
380:B(OCH
359:diols
64:B(OR)
50:with
802:: 90
722:ISBN
694:ISBN
612:HOCH
83:(OR)
69:and
38:are
771:doi
671:doi
580:ArB
529:OCH
520:ArB
473:OCH
464:ArB
420:OCH
245:ROH
135:ROH
46:of
30:In
823::
804:;
800:49
798:.
792:.
750:37
667:78
665:.
645:.
588:OH
378:,
282:OR
222:OH
149:OR
112:OH
73:,
62:,
58::
34:,
811:.
777:.
773::
677:.
673::
616:3
607:2
604:+
596:2
591:)
585:(
574:O
566:2
562:H
557:2
554:+
546:2
541:)
533:3
525:(
490:2
485:)
477:3
469:(
461:+
453:3
437:3
432:)
424:3
416:(
411:B
408:+
386:3
384:)
382:3
353:.
318:O
310:2
306:H
301:6
298:+
290:3
285:)
279:(
269:3
265:O
256:3
252:B
241:3
238:+
230:3
225:)
219:(
214:B
210:3
185:O
177:2
173:H
168:3
165:+
157:3
152:)
146:(
141:B
131:3
128:+
120:3
115:)
109:(
104:B
85:3
81:3
79:O
77:3
75:B
66:3
20:)
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