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벤조 무수물

벤조 무수물
벤조 무수물 구조식 이미지
카스 번호:
93-97-0
한글명:
벤조 무수물
동의어(한글):
벤조무수물;벤조무수물
상품명:
Benzoic anhydride
동의어(영문):
BENZOYL OXIDE;Benzoylbenzoate;Banzoyl benzoate;Phenyl anhydride;Benzoyl benzoate;BENZOIC ANHYDRIDE;Benzoyl anhydride;Benzoesureanhydrid;Dibenzoic anhydride;BenzoicAnhydride99%
CBNumber:
CB1260942
분자식:
C14H10O3
포뮬러 무게:
226.23
MOL 파일:
93-97-0.mol

벤조 무수물 속성

녹는점
38-42 °C(lit.)
끓는 점
360 °C
밀도
1.199 g/mL at 25 °C(lit.)
굴절률
nD15 1.57665
인화점
>230 °F
저장 조건
Inert atmosphere,2-8°C
용해도
0.01g/l (experimental)
물리적 상태
Crystals or Crystalline Powder
색상
White to almost white
수용성
0.01 g/L
감도
Moisture Sensitive
Merck
14,1092
BRN
516726
InChIKey
CHIHQLCVLOXUJW-UHFFFAOYSA-N
CAS 데이터베이스
93-97-0(CAS DataBase Reference)
NIST
Benzoic acid, anhydride(93-97-0)
EPA
Benzoic anhydride (93-97-0)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi
위험 카페고리 넘버 37/38-41-36/37/38
안전지침서 26-39-37/39
WGK 독일 3
F 고인화성물질 10-21
TSCA Yes
HS 번호 29163900
기존화학 물질 KE-02714
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 P280, P305+P351+P338, P310
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
예방조치문구:
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P264 취급 후에는 손을 철저히 씻으시오.
P264 취급 후에는 손을 철저히 씻으시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

벤조 무수물 MSDS


Benzoic anhydride

벤조 무수물 C화학적 특성, 용도, 생산

화학적 성질

white to almost white crystals or crystalline

용도

Benzoic Anhydride is the more active analogue of benzoic acid formed via dehydration. Benzoic Anhydride is used in the synthesis of a wide range of organic compounds including some dyes. Benzoic Anhyd ride is also used as an arylation agent in the Heck reaction.

용도

In organic syntheses, as benzoylating agent in the manufacture of pharmaceuticals, dyes, and intermediates.

용도

Benzoic anhydride is used as a benzoylating agent in the manufacture of pharmaceuticals, dyes and intermediates. It serves as an arylation agent in the Heck reaction. It is also used to get benzoic acid through dehydration. Further, it is used to prepare furan-2-yl-phenyl-methanone, which is similar to Friedel-Crafts acylation reaction. In addition to this, it is used for the synthesis of carboxylic esters and lactones.

제조 방법

To a flask containing 14.0 gm (0.1 mole) of benzoyl chloride and equipped with a stirrer is added 40 ml of dry dioxane and it is cooled to 5°C.Then 10 ml (0.1 mole) of dry pyridine is rapidly added at 5-10°C followed by 1.0 ml (0.056 mole) of water. After stirring for 10-15 min at 0-5°C, the reaction mixture is then poured into a mixture of 75 ml of cone, hydrochloric acid, 75 gm of cracked ice, and 350 ml of water. The product is filtered, washed first for 1 min with a cold 5% solution of sodium bicarbonate and then with water. The product is dried to afford 11.0 gm (97%), m.p. 43°C (recrystallized from a mixture of ether-petroleum ether).
Preparation of Benzoic Anhydride

Synthesis Reference(s)

Chemical and Pharmaceutical Bulletin, 35, p. 1262, 1987 DOI: 10.1248/cpb.35.1262
Tetrahedron Letters, 26, p. 1503, 1985 DOI: 10.1016/S0040-4039(00)98536-8

일반 설명

Benzoic anhydride undergoes Friedel-Crafts acylation reaction with benzene over various ion-exchanged heteropoly acids to yield benzophenone.

Purification Methods

Free it from benzoic acid by washing with NaHCO3, then water, and drying. Crystallise it from *benzene (0.5mL/g) by adding just enough pet ether (b 40-60o) to cause cloudiness, then cool in ice. It can be distilled at 210-220o/20mm. [Beilstein 19 IV 550.]

벤조 무수물 준비 용품 및 원자재

원자재

준비 용품


벤조 무수물 공급 업체

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