午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

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 Propyl chloroacetate
5396-24-7

Propyl chloroacetate synthesis

6synthesis methods
-

Yield:5396-24-7 92%

Reaction Conditions:

with sulfuric acid for 6 h;Reflux;Fischer–Speier Esterification;

Steps:

General procedure for obtaining alkyl 2-chloroacetates via Fisher esterification (5a-5h)

General procedure: A mixture of 2-chloroacetic acid (20 mmol), the respective alcohol (4a-4h) (60 mL) and concentrated sulfuric acid (1 mL) was refluxed for 6 h. Afterwards,the excess solvent was rotary-evaporated, and the residue poured into cold water. The residue was transferred to a separation funnel containing 250 mL of water, and 100 mLof ethyl ether were then added. The organic phase was separated, washed repeatedly with 10% sodium bicarbonate until neutral pH and then dried with anhydrous NaSO4. Ethyl ether was rotary-evaporated, obtaining the respective esters (5a-5h).

References:

Barbosa-Filho, José M.;Brand?o, Maria Cláudia R.;Lima, Edeltrudes O.;Lira, Bruno F.;Neto, Hermes D.;Souza, Helivaldo D. S.;Trindade, Emmely O.;de Athayde-Filho, Petr?nio F. [Journal of the Brazilian Chemical Society,2020,vol. 31,# 8,p. 1668 - 1678]

Propyl chloroacetate Related Search: