Helvetica Chimica Acta p. 1627 - 1638 (1997)
Update date:2022-08-02
Topics:
You, Shaochun
Chai, Shengyong
Schwarz, Nadine
Neuenschwander, Markus
Pentalene dimers 2 and 3 are easily available in moderate yields by CuCl2-induced oxidative coupling of dilithium-pentalenediide (5) (Scheme 1).On the other hand, NBS bromination of 1,5-dihydropentalene (4) or of 1,2-dihydropentalene (8) gives unstable 1-bromo-1,2-dihydropentalene (9), while subsequent in-situ elimination with Et3N exclusively gives syn-cis-pentalene dimer 2 in moderale yields (Scheme3).NMR-Spectroscopic evidence for compounds 2. 3. and 9 is presented, and mechanistic alternatives for the formation of pentalene dimers 2 and 3 are discussed.
View Moreshijiazhuang alkay chemicals co..ltd(expird)
Contact:86-311-67692035
Address:2601,juntang building,qiaodong district,shijiazhuang
Allright GC (Jinan) Biotechnology Ltd.
website:https://www.argcbiotech.com/
Contact:86-18405413579-
Address: No.27566 of Jingshiroad, Huaiyin District, Jinan City(250011), Shandong Province, China.
SHIFANG SUHONG CHEMICAL CO.,LTD
Contact:+86-838-2224563
Address:Room 1207 Zongchen Sunshine No.128 Taishan South Road,Deyang City,Sichuan China
Contact:+65 9658 0999
Address:26 Sin Ming Lane, Midview City, #05-118, Singapore 573971
Shanghai Yurui Biotechnology(Anyang) Pharmaceutical Co., Ltd
Contact:+86-0372-3662335 +86-0372-3661988
Address:hanling industrial park anyang
Doi:10.1002/hlca.19960790210
(1996)Doi:10.1002/ardp.19673000608
(1967)Doi:10.1039/b208115f
(2002)Doi:10.1016/j.polymer.2010.11.055
(2011)Doi:10.1021/acs.orglett.9b03054
(2019)Doi:10.1016/S0022-1139(96)03452-5
(1996)
