成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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 5-bromonaphthalene-1-carboxylic acid
16726-67-3

5-bromonaphthalene-1-carboxylic acid synthesis

11synthesis methods
-

Yield:16726-67-3 61%

Reaction Conditions:

with bromine;acetic acid at 20 - 110; for 25.5 h;

Steps:

4
Following the general procedure of Short (Short, W.F.; Wang, H. J. Chem. Soc. 1950, 991-4), to a three-necked round-bottomed flask equipped with a reflux condenser, a dropping funnel, and an aqueous NaOH trap was added 1-naphthoic acid w (10.0 g, 58.0 mmol) and AcOH (35 EPO mL). This solution was heated at 110 0C and stirred during the addition of bromine (3.12 mL, 61.0 mmol). After the addition, the mixture was heated for another 1.5 h (A yellow solid precipitated during the heating), and then stirred at room temperature for 24 h. The mixture was poured into ice water. The solid was filtered, washed with water, and crystallized from acetic acid (250 mL) to afford 8.9 g (61%) of bromo acid x as a white solid.

References:

GENENTECH, INC. WO2006/69063, 2006, A1 Location in patent:Page/Page column 66-67

FullText

5-bromonaphthalene-1-carboxylic acid Related Search: