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.

29943-42-8 - Tetrahydro-4H-pyran-4-one, 98% - A19010 - Alfa Aesar

A19010 Tetrahydro-4H-pyran-4-one, 98%

CAS 번호
29943-42-8
동의어

사이즈 가격 ($) 수량 재고 여부
1g 39.10
5g 127.00
25g 518.00
장바구니에 추가 대량 견적에 추가 항목 보기

Tetrahydro-4H-pyran-4-one, 98%

MDL
MFCD00006581
EINECS
249-967-2

화학적 특성

화학식
C5H8O2
화학 식량
100.12
비등점
165-167°
인화점
62°(144°F)
밀도
1.084
굴절률
1.4530
용해도
Very soluble in water.

용도

It is employed in the preparation of 4-methoxytetrahydropyran-4-yl protecting group, synthesis of symmetric tetra substituted methanes. The methyl enol ether is a useful protecting agent for alcohols, e.g. in nucleotide synthesis, with the advantage over 3,4-Dihydro-2H-pyran. It is also employed in a study of the enantioselective alpha-aminoxylation of ketones with nitrosobenzene and L-proline in an ionic liquid. It undergoes condensation reactions in the preparation of dipeptides and spiroimidazolones. It is also employed in wittig reactions for the synthesis of Penicillins and in a ring of vitamin D3

참고

Store away from strong bases and oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.

참조 문헌

Colin B. Reese.; R. Saffhill.; J. E. Sulston. Symmetrical alternative to the tetrahydropyranyl protecting group.J. Am. Chem. Soc.,1967,89(13), 3366-3368.

George R. Newkome.; Sadao Arai.; V. K. Gupta.; Rodger W. Griffin. Chemistry of micelles series. 4. A convenient synthesis of tetrakis(2-bromoethyl)methane.J. Org. Chem.,1987,52(24), 5480-5482.

The methyl enol ether is a useful protecting agent for alcohols, e.g. in nucleotide synthesis, with the advantage over 3,4-Dihydro-2H-pyran, L02731, that no new asymmetric center is introduced on reaction with a chiral alcohol: J. Am. Chem. Soc., 89, 3366 (1967); Tetrahedron, 26, 1023, 1031 (1970).

GHS 해저드 및 주의 설명서

해저드 설명서 (EU): H227

Combustible liquid.

주의 설명서: P210u-P280a-P370+P378a-P403+P235-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Wear protective gloves and eye/face protection. In case of fire: Use for extinction: CO2, powder or water spray. Store in a well-ventilated place. Keep cool. Dispose of contents/container in accordance with local/regional/national/international regulations.

기타 참조

바일슈타인
106463
통합 관세 코드
2932.99
TSCA(독성물질규제법)"
No

권장

  • A11751

    2-Bromo-4-fluoroaniline, 98%
  • A12383

    tert-Butyl carbazate, 98+%
  • A12535

    Trimethylsilyl trifluoromethanesulfonate, 99%
  • A13068

    Cyclobutanone, 98%, stab. with ca 0.01% BHT
  • A13125

    5-Chloroisatin, 98%

최근에 본 것

화학물질

화학물질

금속 및 재료

촉매

분석 기기 및 실험실 용품