一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List THIOXANTHENE
261-31-4

THIOXANTHENE synthesis

13synthesis methods
-

Yield: 95%

Reaction Conditions:

with aluminum (III) chloride;lithium aluminium tetrahydride in tetrahydrofuran at 0; for 1 h;Reflux;

Steps:

9H-Thioxantene (B)
To a suspension of LiAlH4 (1.6 g, 44 mmol) in dry THF (100 mL) was added a solution of AlCl3 (5.6 g, 84 mmol) in dry THF (100 mL) at 0 °C, followed by adding thioxantone (A, 5.0 g, 24 mmol). After reflux for 1 h, the mixture was cooled to 0 °C and quenched with ethyl acetate. Water was then added very slowly, and extraction was performed with ethyl acetate for several times. The organic layer was washed successively with 5% HCl aqueous solution, saturated NaHCO3 aqueous solution, and brine three times for each, and was dried over MgSO4. Removal of solvent gave B as apale yellow solid (4.5 g, 95%).

References:

Arimitsu, Koji;Kitamura, Hiroshi;Mizuochi, Ryuta;Furutani, Masahiro [Chemistry Letters,2015,vol. 44,# 3,p. 309 - 311] Location in patent:supporting information

THIOXANTHENE Related Search:

镇原县| 咸阳市| 宁南县| 卓资县| 潮安县| 庆安县| 澄江县| 平顶山市| 璧山县| 镇赉县| 北票市| 郁南县| 峨山| 通榆县| 扎赉特旗| 舒城县| 赤壁市| 辽阳县| 佳木斯市| 隆德县| 辽中县| 彭州市| 临猗县| 华容县| 云南省| 贡觉县| 沙湾县| 库尔勒市| 赤壁市| 班戈县| 泗阳县| 永城市| 岐山县| 河池市| 固安县| 平遥县| 固原市| 临猗县| 姜堰市| 常熟市| 武陟县|