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 Benzyl cinnamate
103-41-3

Benzyl cinnamate synthesis

13synthesis methods
Benzyl cinnamate is produced by the direct esterification of benzyl alcohol with cinnamic acid.
-

Yield:103-41-3 96%

Reaction Conditions:

with iron(III)-acetylacetonate in n-heptane at 105; for 10 h;Inert atmosphere;

Steps:

Representative procedure for transesterification reactions catalyzed by Fe(acac)3 in the absence of Na2CO3
General procedure: To a dry 25 mL, bottomed flask equipped with a Dean-Stark trap containing a plug of 4? molecular sieves (pellets) and topped with a reflux condenser was added of Fe(acac)3 ( 36 mg, 0.10 mmol, 5 mol%) and a solution of methyl bezoate (272 mg, 256 .L, 2.0 mmol), benzyl alcohol (216 mg, 208 .L, 2.0 mmol) and triphenyl methane (488 mg, 2 mmol, as internal standard) in heptane (20 mL). The mixture was heated to reflux (105 ° C) for an indicated time periods. After completion of the reaction as monitored by TLC, 1H NMR and GC, the reaction mixture was cooled to room temperature and the solvent was evaporated. The crude product was purified by column chromatography on silica gel to afforded benzyl benzoate 403 mg, 95% yield. The product obtained was characterized by 1H, 13C NMR, ESI-MS or GC-MS spectroscopic methods. The conversions of the products determined by GC are based on triphenyl methane as an internal standard and are response-corrected based on authentic samples.

References:

Weng, Shiue-Shien;Ke, Chih-Shueh;Chen, Fong-Kuang;Lyu, You-Fu;Lin, Guan-Ying [Tetrahedron,2011,vol. 67,# 9,p. 1640 - 1648] Location in patent:supporting information; experimental part

Benzyl cinnamate Related Search:

前郭尔| 白朗县| 新源县| 曲阳县| 衡南县| 嘉义县| 丹阳市| 葫芦岛市| 甘德县| 于田县| 托里县| 兰州市| 临海市| 胶南市| 山阳县| 扶沟县| 兴国县| 南华县| 盘锦市| 景洪市| 宜阳县| 赤壁市| 无棣县| 绩溪县| 类乌齐县| 板桥市| 华坪县| 通州市| 石柱| 牟定县| 普宁市| 南宁市| 昌吉市| 闻喜县| 新密市| 巧家县| 汉源县| 五家渠市| 长兴县| 隆子县| 阿拉善右旗|