Tetrahydrothiopyran-4-one

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H319：눈에 심한 자극을 일으킴

• 예방조치문구

  P264：취급 후에는 손을 철저히 씻으시오.

  P264：취급 후에는 손을 철저히 씻으시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

  P337+P313：눈에 대한 자극이 지속되면 의학적인 조치· 조언를 구하시오.

Tetrahydrothiopyran-4-one MSDS

• 4-Thiacyclohexanone

Tetrahydrothiopyran-4-one 화학적 특성, 용도, 생산

• 화학적 성질

  WHITE TO PALE YELLOW CRYSTALLINE SOLID

• 용도

  Tetrahydro-?4H-?thiopyran-?4-?one is a cyclic carbonyl compound used as a reactant in the stereoselective preparation of [aryl(nitro)ethyl] carbonyl compounds via asymmetric Michael addition to nitroolefins catalyzed by chiral pyrrolidine-pyridine conjugate bases.

• 일반 설명

  The diastereoselectivity of the aldol reaction of tetrahydro-4H-thiopyran-4-one has been studied.

• Purification Methods

  Purify it by recrystallisation from diisopropyl ether or pet ether and dry it in air. If too impure, then dissolve it in Et2O, wash with aqueous NaHCO3, then H2O, dry (MgSO4), filter, evaporate and the residue is recrystallised as before. [Cardwell J Chem Soc 715 1949.] The oxime can be recrystallised from CHCl3/pet ether (at -20o) and has m 84-85o [Barkenbus et al. J Org Chem 20 871 1955]. The 2,4-dinitrophenylhydrazone has m 186o (from EtOAc) [Barkenbus et al. J Org Chem 16 232 1951]. The S-dioxide is recrystallised from AcOH, m 173-174o [Fehnel & Carmack J Am Chem Soc 70 1813 1948, Beilstein 17 II 287, 17 III/IV 4172, 17/1 V 21].

Tetrahydrothiopyran-4-one 준비 용품 및 원자재

Tetrahydrothiopyran-4-one 공급 업체

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