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 ZINC 2,11,20,29-TETRA-TERT-BUTYL-2,3-NAPHTHALOCYANINE
39049-43-9

ZINC 2,11,20,29-TETRA-TERT-BUTYL-2,3-NAPHTHALOCYANINE synthesis

2synthesis methods
-

Yield:39049-43-9 45%

Reaction Conditions:

with quinoline;1,8-diazabicyclo[5.4.0]undec-7-ene at 180; for 20 h;

Steps:

Synthesis of a naphthalocyanine structure

A mixture of 6-tert-butyl-2,3-dicyanonaphthalene A (18.8 g, 0.08 mol), anhydrous zinc acetate B (3.7 g, 0.02 mol), dry quinoline 100 mL and DBU 12 mL was stirred at 180 deg C for 20 hr. After cooling, the mixture was poured into methanol (3500 mL). The crude product was collected by vacuum filtration, washed with methanol and purified by Soxhlet extraction with methanol for 2 days. Finally, the dark green residue was chromatographed on silica gel with chloroform as the eluting solvent. Chloroform was evaporated and product triturated with methanol, again collected by filtration and vacuum dried at 70 deg C. Yield was 9 g or 45% of theoretical.

References:

WO2013/55640,2013,A2 Location in patent:Page/Page column 26

ZINC 2,11,20,29-TETRA-TERT-BUTYL-2,3-NAPHTHALOCYANINE Related Search:

榆树市| 江西省| 武鸣县| 安图县| 上杭县| 乐安县| 新绛县| 墨竹工卡县| 香河县| 林周县| 温州市| 瑞丽市| 潢川县| 秦皇岛市| 紫阳县| 长汀县| 扬州市| 南川市| 牡丹江市| 盐边县| 安多县| 商丘市| 巫山县| 常熟市| 奉节县| 广水市| 大港区| 尼勒克县| 镇平县| 泗阳县| 饶河县| 哈尔滨市| 奎屯市| 白河县| 东丰县| 西昌市| 玉林市| 武宁县| 嘉义县| 柳江县| 车险|