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546-68-9 - Titanium(IV) isopropoxide, 95% - Tetraisopropoxytitanium(IV) - Tetraisopropyl orthotitanate - A13703 - Alfa Aesar

A13703 Titanium(IV) isopropoxide, 95%

CAS 번호
546-68-9
동의어
Tetraisopropoxytitanium(IV)
Tetraisopropyl orthotitanate

사이즈 가격 ($) 수량 재고 여부
100g 22.90
500g 59.40
2500g 226.00
장바구니에 추가 대량 견적에 추가 항목 보기

Titanium(IV) isopropoxide, 95%

MDL
MFCD00008871
EINECS
208-909-6

화학적 특성

화학식
C12H28O4Ti
화학 식량
284.23
융점
16-20°
비등점
232°
인화점
46°(115°F)
밀도
0.955
굴절률
1.4640
감도
Moisture Sensitive
용해도
Soluble in anhydrous ethanol, ether, benzene and chloroform.

용도

Titanium(IV) isopropoxide is used as a precursor for the preparation of titanium and barium-strontium-titanate thin films. It is useful to make porous titanosilicates and potential ion-exchange materials for cleanup of radioactive wastes. It is an active component of sharpless epoxidation as well as involved in the synthesis of chiral epoxides. In Kulinkovich reaction, it is involved as a catalyst in the preparation of cyclopropanes.

참고

Moisture sensitive. Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents and strong acids. It reacts with water to produce titanium dioxide.

참조 문헌

Catalyst for transesterification, avoiding acidic or basic conditions. The reaction is carried out such that one alcohol is removed to displace the equilibrium: Synthesis, 138 (1982); Org. Synth. Coll., 8, 201 (1993). For application to carbamates, including Boc to Cbz conversion, see: J. Org. Chem., 62, 7096 (1997).

For use in the Sharpless enantioselective epoxidation of allylic alcohols, see tert-Butyl­ hydroperoxide, A13926. For analogous enantioselective oxidation of sulfides to sulfoxides, see Cumene hydroperoxide, L06866. Epoxy alcohols can also be obtained in high yield in one pot by hydroperoxidation of alkenes with singlet oxygen in the presence of Ti(O-i-Pr)4: J. Am. Chem. Soc., 111, 203 (1989).

Also catalyzes the ring-opening of 2,3-epoxy alcohols (e.g. from the above reactions) with various nucleophiles, including amines, thiols, thiolate anions, halides, carboxylates etc. The mild conditions result in increased regioselectivity: J. Org. Chem., 50, 1557 (1985).

See also Dimethyl­amine hydrochloride, A12133.

For conversion of epoxides to episulfides, see Thiourea, A12828. For use in reductive alkylation of amines, see Sodium cyanoborohydride, 87839. For use in enantioselective synthesis of homoallylic alcohols, see (R)-(+)-1,1'-Bi(2-naphthol)­, L08305. For reduction of amides to aldehydes, see Diphenyl­silane, A10884.

For a brief feature on uses of the reagent, see: Synlett, 2261 (2003).

Khalil, K. M.; El-Khatib, R. M.; Ali, T. T.; Mahmoud, H. A.; Elsamahy, A. A. Titania nanoparticles by acidic peptization of xerogel formed by hydrolysis of titanium(IV) isopropoxide under atmospheric humidity conditions. Powder Technol. 2013, 245, 156-162.

Wanna, N.; Kraithong, T.; Khamnaen, T.; Phiriyawirut, P.; Charoenchaidet, S.; Tantirungrotechai, J. Aluminum-and calcium-incorporated MCM-41-type silica as supports for the immobilization of titanium(IV) isopropoxide in ring-opening polymerization of l-lactide and ε-caprolactone. Catal. Commun. 2014, 45, 118-123.

GHS 해저드 및 주의 설명서

해저드 설명서 (EU): H226-H319

Flammable liquid and vapour. Causes serious eye irritation.

주의 설명서: P210-P280a-P240-P303+P361+P353-P305+P351+P338-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Wear protective gloves and eye/face protection. Ground/bond container and receiving equipment. 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. Dispose of contents/container in accordance with local/regional/national/international regulations.

기타 참조

Merck
14,9480
바일슈타인
3679474
위험 등급
3
포장 그룹
III
통합 관세 코드
2905.19
TSCA(독성물질규제법)"
Yes
RTECS(화학물질 독성 등록)
NT8060000

권장

최근에 본 것

화학물질

화학물질

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