Bulletin of the Chemical Society of Japan p. 3338 - 3343 (1980)
Update date:2022-08-29
Topics:
Poonia, Narinder S.
Sen, Swagata
Porwal, Prafulla K.
Jayakumar, A.
The Perkin condensation of benzaldehyde (PhCHO) and acetic anhydride (Ac2O) in the presence of an alkali acetate (M+OAc-) involves extensive participation of M+ and take place best with K+OAc-.Employing an excess of meticulousy dehydrated K+OAc-, a record high yield of cinnamic acid (ca.75percent) can be obtained in a 60 min reaction.The product of the reaction before hydrolysis is not PhCH=CHCOOCOCH3 as usually believed but potassium cinnamate plus K+(OAc,HOAc)-.Conductometric solution stability studies on M+-ligand (M+=Na+ and K+; Ligand=PhCHO, o-NO2C6H4CHO,o-HOC6H4CHO) systems in 2-propanol show that stabilty sequences for PhCHO and o-NO2C6H4CHO are NaOAc
website:http://www.win-winchemical.com
Contact:0086-577-64498589
Address:6F, No. 396 Xingping Road, Longwan Industrial Zone, Wenzhou City, Zhejiang, 325000 P.R.China
ABA Chemicals (Shanghai) Limited
Contact:021- 5115 9199-232
Address:Suite 18D, #201 Ningxia Road,
Contact:86-574-26865651
Address:529 YuanBaoShan Road, Beilun District
Contact:410-273-7300; 800-221-3953
Address:4609 Richlynn Dr., PO Box 369, Belcamp, MD, 21017-0369, USA
Contact:+86-(0)21-3770 9035
Address:Room 301, Building 2, Meijiabang Road 1508, Shanghai China
Doi:10.1080/00304940409355374
(2004)Doi:10.1016/S0022-1139(00)81332-9
(1982)Doi:10.1023/A:1026398307803
(2003)Doi:10.1021/jm9003973
(2009)Doi:10.1002/anie.201907478
(2019)Doi:10.1021/acs.orglett.7b01064
(2017)
