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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 번호
274-07-7
동의어
1,3,2-Benzodioxaborole

사이즈 가격 ($) 수량 재고 여부
25g 151.00
100g 410.00
장바구니에 추가 대량 견적에 추가 항목 보기

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

MDL
MFCD00005846

화학적 특성

화학식
C6H5BO2
화학 식량
119.92
밀도
0.911
굴절률
1.5025
감도
Moisture Sensitive
용해도
Reacts with water.

용도

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.

참고

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

참조 문헌

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 해저드 및 주의 설명서

해저드 설명서 (EU): H225-H302-H333-H314-H318-H361-H336-H373-H304

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

주의 설명서: P210-P301+P310a-P303+P361+P353-P305+P351+P338-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. IF SWALLOWED: Immediately call a POISON CENTER/doctor 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. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

기타 참조

위험 등급
3
포장 그룹
II
통합 관세 코드
2934.99
TSCA(독성물질규제법)"
Yes

권장

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  • A13285

    Formic acid, 97%
  • A16163

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

    Catecholborane, 97%

최근에 본 것

화학물질

화학물질

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