Studies on Lewis acid-mediated intramolecular cyclization reactions of allene-ene systems

Authors
Hiroi, K Watanabe, T Tsukui, A
Citation
K. Hiroi et al., Studies on Lewis acid-mediated intramolecular cyclization reactions of allene-ene systems, CHEM PHARM, 48(3), 2000, pp. 405-409
Citations number
26
Categorie Soggetti
Chemistry & Analysis
Journal title
CHEMICAL & PHARMACEUTICAL BULLETIN
ISSN journal
00092363 → ACNP
Volume
48
Issue
3
Year of publication
2000
Pages
405 - 409
Database
ISI
SICI code
0009-2363(200003)48:3<405:SOLAIC>2.0.ZU;2-J
Abstract
The Lewis acid-mediated reactions of allene-ene compounds, derived from 3-m ethylcitronellal or dimethyl malonate, were carried out using various Lewis acids such as ethylaluminum dichloride, diethylaluminum chloride, titanium chloride, zinc chloride etherate, or boron trifluoride etherate, affording unexpectedly intramolecular [2+2]cycloaddition products under some particu lar reaction conditions without any formation of intramolecular ene reactio n products.