Tetrahedron Letters p. 19 - 22 (1986)
Update date:2022-07-29
Topics:
Koller, Manuel
Karpf, Martin
Dreiding, Andre S.
The gas flow thermolyses of 1-isobutenyl alkynyl and 2-methylphenyl alkynyl ketones were found to lead to phenols and to cyclopentenones.The results are explained by a 5-ring carbene process (the known α-alkynone cyclization) and a 6-ring as well as a 5-ring addition process.The latter two (novel) processes are thought to be intramolecular "C-H to C<*>C additions" in two directions.The 5-ring addition process was used in a short (but low yield) synthesis of methylenomycin B.
View MoreHuangshan Honghui Pharm Technology Co., Ltd.
website:http://www.honghuichem.com
Contact:18855958372
Address:Qingshan Wan No.1,Nanyuan Kou,SheXian Huangshan City,Anhui Province
Zhengzhou Xinlian Chemical Tech Co. ,Ltd
Contact:0371-65771781 021-52042910
Address:H Part, Building I, No. 700 Gonglu Road, Pudong New Area, Shanghai
Shangyu Sanhechemicals Co.,LTD.
Contact:86-0571-56696839
Address:Num.2952,Nanhuan Road,Binjiang District,Hangzhou,China
Contact:86-898-65311214
Address:Room 102, BLDG. 68 Jiangnan City, No. 66 Heping Road,Haikou, Hainan, China
Jinan Hongfangde Pharmatech Co.,Ltd
Contact:86-531-88870908
Address:F Bldg. West Unit North Area of Univ. Tech. Garden Xinyu Rd. Jinan New & High Tech Industry Development Zone Shandong, China
Doi:10.1021/om800073s
(2008)Doi:10.1002/chem.200800167
(2008)Doi:10.1002/hlca.19580410624
(1958)Doi:10.1021/jm500373x
(2015)Doi:10.1021/ol8012292
(2008)Doi:10.1021/jo00370a025
(1986)