天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
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 (2-P-TOLYL-THIAZOL-4-YL)-METHANOL
36093-97-7

(2-P-TOLYL-THIAZOL-4-YL)-METHANOL synthesis

4synthesis methods
35199-18-9 Synthesis
4-(CHLOROMETHYL)-2-(4-METHYLPHENYL)-1,3-THIAZOLE HYDROCHLORIDE

35199-18-9
16 suppliers
$45.00/50mg

-

Yield:36093-97-7 75%

Reaction Conditions:

with sulfuric acid in water;Reflux;

Steps:

Synthesis of (2-p-tolylthiazol-4-yl)methanol (4)

Synthesis of (2-p-tolylthiazol-4-yl)methanol (4): The 4-(Chloromethyl)-2-p-tolylthiazole derivative (4.5g, 22 mmol) (3) was dissolved in 75 ml water and 75 mlconcentrated H2SO4. The reaction was refluxed for 24-48 hours and the completion was monitored by TLC.The acidic reaction was neutralized by concentratedNaOH and remain overnight at room temperature toprecipitate the product. Purification of the obtainedproduct was done by crystallization from chloroformpetroleumether.10 m.p. = 114-115 °C; Yield: 75 %; 1HNMR (400 MHz, CDCl3) δ/ppm: 2.4 (s, 3H, CH3), 3.1(brs, 1H, OH), 4.8 (s, 2H, CH2), 7.2 (d, 2H, J = 8 Hz,C3-H, C5-H phenyl), 7.27 (s, 1H, C4-H thiazole), 7.82(d, 2H, J= 8 Hz, C2-H C6-H phenyl); IR (KBr) v/cm-1:3436, 2929 (C-H stretch, aliphatic), 1649, 1454 (C=Cstretch, phenyl), 1152 (C-O, stretch), 1029, 804, 599.Elem. anal. for C11H11NOS: Calc. C: 64.36, H: 5.40, N:6.82; found C: 64.41, H: 5.36, N: 6.85.

References:

Aliabadi, Alireza;Foroumadi, Alireza;Safavi, Maliheh;Ardestani, Sussan K. [Croatica Chemica Acta,2013,vol. 86,# 3,p. 245 - 251]