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 P-BUTOXYTOLUENE
10519-06-9

P-BUTOXYTOLUENE synthesis

12synthesis methods
-

Yield: 89%

Reaction Conditions:

with [1,3-bis(cyclohexyl)imidazol-2-ylidene]copper(I) chloride;potassium tert-butylate in acetonitrile at 80; for 2 h;Schlenk technique;Inert atmosphere;

Steps:

p-Butoxytoluene (3a)
To a 20 mL dry Schlenk flask equipped with a stir bar was combined 4-methylbenzyl alcohol (0.122 g, 1.0 mmol, 1 equiv), tBuOK (0.224 g, 2.0 mmol, 2 equiv), nBuCl (80 mg, 1.1 mmol, 1.1 equiv) and ICyCuCl (6.6 mg, 0.02 mmol, 0.02 equiv). The mixture was stirred in 5 mL of anhydrous CH3CN under argon atmosphere at 80 °C for 2 h. Then the solvent was evaporated under reduced pressure and the residue was purified by flash silica column chromatography [petroleum ether : ethylacetate = 20:1] to give yellow oil; yield: 0.158g (89%). 1H NMR (300 MHz, CDCl3): δ 7.31 (d, J = 7.9 Hz, 2H), 7.23 (d, J = 7.8 Hz, 2H), 4.54 (s, 2H), 3.53 (t, J = 6.6 Hz, 2H), 2.39 (s, J = 14.9 Hz, 3H), 1.68 (dt, J = 14.5, 6.7 Hz, 2H), 1.45 (dt, J= 20.1, 10.4 Hz, 2H), 1.00 (t, J = 7.3 Hz, 3H); 13C NMR (75 MHz, CDCl3): δ 137.3, 135.9, 129.3, 128.0, 73.0, 70.3, 32.2, 21.4, 19.7, 14.2; MS (EI) m/z (%): 178 (5.24), 105 (100).

References:

Zhan, Lewu;Pan, Renming;Xing, Ping;Jiang, Biao [Tetrahedron Letters,2016,vol. 57,# 36,p. 4036 - 4038] Location in patent:supporting information

P-BUTOXYTOLUENE Related Search:

文登市| 来安县| 大埔区| 馆陶县| 林甸县| 裕民县| 临夏县| 游戏| 秀山| 西乌| 韶山市| 涞水县| 出国| 周口市| 政和县| 山东省| 临潭县| 明星| 会东县| 晋宁县| 鹿泉市| 乌拉特中旗| 科尔| 拉孜县| 柘城县| 兰考县| 万州区| 宜宾县| 红河县| 荥阳市| 东安县| 沈阳市| 新余市| 栾川县| 太白县| 桑日县| 依安县| 米林县| 安宁市| 石泉县| 太谷县|