Synthesis p. 195 - 198 (1991)
Update date:2022-08-03
Topics:
Popic
Korneev
Nikolaev
Korobitsyna
The sodium hydride/dibenzo-18-crown-6 ether system was found to be an effective base for the synthesis of 1,3-diketones by the Claisen condensation. The use of potassium fluoride (with or without crown ether) as the base in diazo-transfer reactions extends this reaction to the synthesis of hindered diazo diketones. In the case of isomeric 1,3-diketones, the stereoselectivity of the process considerably rises.
View MoreShenyang NovPharm Technology Co., Ltd.
Contact:.+86-24-24165786
Address:Room 306, Hongjin Mansion, No. 36-1, Wanliutang Rd., Shenhe District, Shenyang, Liaoning, P.R.C.
Engineering Research Center of Pesticide, Heilongjiang Province
Contact:+86-451-86609001
Address:No.74 of Xuefu Road, Nangang District,
Shanghai Hongbang Medical Technology CO.,. Ltd
Contact:13671516988 /18917636693
Address:Room1, No67 Building, Yongde Road369, Wujing Town, Minhang Districy, Shanghai CIty, China.
Anhui Biochem United Pharmaceutical Co., Ltd.
Contact:0086 551 5167062 / 5228268
Address:No. 30 Hongfeng Road, Hi-Tech Development Zone, Hefei (230088), China
Beijing Merson Pharmaceutical Co., Ltd
Contact:0086-10-80484934 0086-10-80484574/
Address:2nd Floor , No. 2 Building , No. 14 Houshayu Duan, Jingmi Road ,Shunyi District , Beijing 101318, P.R.China
Doi:10.1016/s0020-1693(98)00064-4
(1998)Doi:10.1016/S0040-4039(00)84359-2
(1986)Doi:10.1016/j.tetlet.2008.06.059
(2008)Doi:10.1016/S0040-4039(00)99344-4
(1989)Doi:10.1023/A:1013849329273
(2001)Doi:10.1021/jm051023x
(2006)