Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

274-07-7 - Catecholborane, 50% w/w in toluene (98% dry wt.) - 1,3,2-Benzodioxaborole - H30234 - Alfa Aesar

H30234 Catecholborane, 50% w/w in toluene (98% dry wt.)

CAS-Nummer
274-07-7
Synonyme
1,3,2-Benzodioxaborole

Größe Preis ($) Menge Verfügbarkeit
25g 151,00
100g 410,00
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

Catecholborane, 50% w/w in toluene (98% dry wt.)

MDL
MFCD00005846

Chemische Eigenschaften

Formel
C6H5BO2
Molmasse
119.92
Dichte
0.911
Brechungsindex
1.5025
Sensitivität
Moisture Sensitive
Löslichkeit
Reacts with water.

Anwendungen

Employed in organic synthesis. Addition of catecholborane to vinylarenes in the presence of Wilkinson's catalyst, gives Markovnikov hydroboration products exclusively, whereas the corresponding reaction with a-substituted vinylarenesgivesgood yields of vinylboronate. Hydroboration with catecholborane, followed by treatment with easily available reagents such as alkenyl sulfones or alkynyl phenyl sulfones in the presence of a radical initiator, represents an effective and simple one-pot procedure for direct vinylation, formylation, and cyanation. Catecholborane may be used as a stereoselective reducing agent when converting β-hydroxy ketones to syn 1,3-diols.

Bemerkungen

Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from water, moisture.

Literaturverweise

Clinton F. Lane,; George W. Kabalka. Catecholborane: A new hydroboration reagent. Tetrahedron. 1976, 32 (9),981-990.

David A. Evans,; Gregory C. Fu. Conjugate reduction of .alpha.,.beta.-unsaturated carbonyl compounds by catecholborane. J. Org. Chem. 1990, 55 (22),5678-5680.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H225-H304-H361-H373-H314-H336

Highly flammable liquid and vapour. May be fatal if swallowed and enters airways. Suspected of damaging fertility or the unborn child. May cause damage to organs through prolonged or repeated exposure. Causes severe skin burns and eye damage. May cause drowsiness or dizziness.

Sicherheitshinweise: P210-P260-P201-P261-P301+P310-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Avoid breathing dust/fume/gas/mist/vapours/spray. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Gefahrenklasse
3
Verpackungsgruppe
II
Harmonized Tariff Code
2934.99
TSCA
Yes

Empfohlen

  • A10924

    N,N-Dimethylacetamide, 99%
  • A11766

    Allyl bromide, 99%, stab. with 300-1000ppm Propylene oxide
  • A13285

    Formic acid, 97%
  • A16163

    Formaldehyde, 37% w/w aq. soln., stab. with 7-8% methanol
  • L14998

    Catecholborane, 97%

Kürzlich angesehen

Chemikalien

Life science

Metalle und Stoffe

Katalysatoren

Forschungs- und Laborbedarf