Premium
Inside Cover: The Synthesis and Properties of Free‐Base [14]Triphyrin(2.1.1) Compounds and the Formation of Subporphyrinoid Metal Complexes (Chem. Eur. J. 16/2011)
Author(s) -
Xue Zhao Li,
Mack John,
Lu Hua,
Zhang Lei,
You Xiao Zeng,
Kuzuhara Daiki,
Stillman Martin,
Yamada Hiroko,
Yamauchi Seigo,
Kobayashi Nagao,
Shen Zhen
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201190077
Subject(s) - aldehyde , pyrrole , base (topology) , chemistry , cover (algebra) , metal , catalysis , free base , polymer chemistry , organic chemistry , mathematics , salt (chemistry) , mechanical engineering , mathematical analysis , engineering
A series of free‐base [14]triphyrin(2.1.1) compounds have been prepared in yields up to 35 % based on a modified Lindsey method. The use of BF 3 ⋅OEt 2 as a catalyst and its concentration relative to the pyrrole and aldehyde precursors are critical factors in [14]triphyrin(2.1.1) formation. Retro‐Diels–Alder reactions were used to prepare [14]tribenzotriphyrin(2.1.1) and [14]trinaphthotriphyrin(2.1.1) compounds. For more details see the Full Paper by Z. Shen, H. Yamada, N. Kobayashi et al. on page 4396 ff.