284548

3,4-(亚甲二氧基)甲苯

97%

• 别名: 5-甲基-1,3-苯并二噁茂
• 经验公式（希尔记法）: C₈H₈O₂
• CAS号: 7145-99-5
• 分子量: 136.15
• MDL號碼: MFCD00005833
• 分類程式碼代碼: 12352100
• PubChem物質ID: 24857165
• NACRES: NA.22

属性

• 化驗: 97%
• 形狀: liquid
• 折射率: n20/D 1.532 (lit.)
• bp: 199-200 °C (lit.)
• 密度: 1.135 g/mL at 25 °C (lit.)
• SMILES 字串: Cc1ccc2OCOc2c1
• InChI: 1S/C8H8O2/c1-6-2-3-7-8(4-6)10-5-9-7/h2-4H,5H2,1H3
• InChI 密鑰: GHPODDMCSOYWNE-UHFFFAOYSA-N

说明

應用

3,4-(Methylenedioxy)toluene can be used as a cation scavenger for the selective cleavage of 4-(3,4-dimethoxyphenyl)benzyl (DMPBn) ethers affording the corresponding deprotected products in the presence of trifluoroacetic acid (TFA) in anhydrous CH₂Cl₂.
It can also be used as a starting material to prepare:

• 1,3-Benzodioxole-5-carboxaldehyde via photooxidation using CBr₄.
• 6-Methyl-1,3-benzodioxole-5-carboxaldehyde by treating with dichloromethylmethyl ether and TiCl₄.

安全信息

• 象形圖: GHS05,GHS07
• 訊號詞: Danger
• 危險聲明: H302,H318
• 防範說明: P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• 危險分類: Acute Tox. 4 Oral - Eye Dam. 1
• 儲存類別代碼: 10 - Combustible liquids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: 168.8 °F - closed cup
• 閃點（°C）: 76 °C - closed cup
• 個人防護裝備: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)