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14635-75-7 - Nitrosonium tetrafluoroborate, 98% - Nitrosyl tetrafluoroborate - A15806 - Alfa Aesar

A15806 Nitrosonium tetrafluoroborate, 98%

CAS 번호
14635-75-7
동의어
Nitrosyl tetrafluoroborate

사이즈 가격 ($) 수량 재고 여부
2g 33.10
10g 72.40
50g 287.00
장바구니에 추가 대량 견적에 추가 항목 보기

Nitrosonium tetrafluoroborate, 98%

MDL
MFCD00011433
EINECS
238-679-2

화학적 특성

화학식
NOBF4
화학 식량
116.82
융점
250° subl.
비등점
250°/0.01mm subl.
밀도
2.185
감도
Moisture Sensitive
용해도
Soluble in acetonitrile.

용도

Nitrosonium tetrafluoroborate is a nitrosating agent and oxidizer used in organic synthesis. It is also used to convert arylamines directly to diazonium tetrafluoroborates, which undergo the Balz-Schiemann reaction in situ to give high yields of aryl fluorides. Further, it is used as a catalyst for iodination of aromatics by iodide ion with air as oxidant, conversion of secondary amines to nitrosamines and in deamination of primary amides. It is involved in the conversion of arylhydrazines to azides. In addition to this, it reacts with ferrocene to prepare ferrocenium tetrafluoroborate.

참고

Hygroscopic. Air and moisture sensitive. Store in a cool place. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids and amines.

참조 문헌

Crystalline nitrosating agent: Secondary amines to nitrosamines: Chem. Ber., 89, 2374 (1956); deamination of primary amides: J. Org. Chem., 30, 2386 (1965); conversion of arylhydrazines to azides: Tetrahedron Lett., 28, 5091 (1987). In organic solvents, converts arylamines directly to diazonium tetrafluoroborates which undergo the Balz-Schiemann reaction (see Tetrafluoroboric acid, L14037 ) in situ to give high yields of aryl fluorides: Chem. Ber., 88, 1939 (1955); EP 430,434 (1991). Methyl or methoxy substituted aromatics in acetonitrile give the nitrosoaromatics in good yield: J. Org. Chem., 59, 5573 (1994).

Convenient catalyst for iodination of aromatics by iodide ion with air as oxidant: J. Org. Chem., 53, 3548 (1988), or for addition of iodine (or iodine + nucleophile) to alkenes: Acta Chem. Scand. B, 43, 902 (1989).

Undergoes an interesting insertion reaction with diarylcyclopropanes: Chem. Lett., 233 (1988):

With excess reagent, oxidation of the isoxazoline to the isoxazole occurs.

Yang, Y.; Yao, Y.; He, L.; Zhong, Y.; Ma, Y.; Yao, J. Nonaqueous synthesis of TiO2-carbon hybrid nanomaterials with enhanced stable photocatalytic hydrogen production activity. J. Mater. Chem. A 2015, 3 (18), 10060-10068.

Bandi, V.; Gobeze, H. B.; Lakshmi, V.; Ravikanth, M.; D’Souza, F. Vectorial Charge Separation and Selective Triplet-State Formation during Charge Recombination in a Pyrrolyl-Bridged BODIPY-Fullerene Dyad. J. Phys. Chem. C 2015, 119 (15), 8095-8102.

GHS 해저드 및 주의 설명서

해저드 설명서 (EU): H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

주의 설명서: P260u-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

Do not breathe dusts or mists. 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. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

기타 참조

Merck
14,6649
위험 등급
8
포장 그룹
II
통합 관세 코드
2812.90
TSCA(독성물질규제법)"
Yes

권장

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최근에 본 것

화학물질

화학물질

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