Corrigendum to "Regioselective ring-opening of epoxides with amines using Zn(ClO4)2-Al2O3 as a heterogeneous and recyclable catalyst". [Tetrahedron Lett. 49 (2008) 1795] (DOI:10.1016/j.tetlet.2008.01.044)

Full text of DOI:10.1016/j.tetlet.2008.02.146

Available online at www.sciencedirect.com
Tetrahedron Letters 49 (2008) 2851–2852
Corrigendum
Corrigendum to ‘‘Regioselective ring-opening of epoxides with amines
using Zn(ClO4)2–Al2O3 as a heterogeneous and recyclable catalyst”
[Tetrahedron Lett. 49 (2008) 1795]
Muchchintala Maheswara a, Kummari Subba Venkata Krishna Rao b, Jung Yun Do a,*
a Department of Advanced Materials for Information and Display, Pusan National University, Busan 609-735, Republic of Korea
b Department of Engineering and Polymer Sciences Pusan National University, Busan 609-735, Republic of Korea
Available online 4 March 2008
The authors sincerely regret the errors that were published in Scheme 3, Table 1 (structures for 3k to 3n) and Table 2
structure. The corrected scheme and structures are shown below.
HO
H
O
Zn(ClO4)2-Al2O3
CH2Cl2 r. t.
N
O
O
+
R
NH2
Ph
R
Ph
Scheme 3.
Table 1
Zinc perchlorate–Al2O3 catalyzed ring-opening of epoxides with amines
Entry
Epoxide 1
Amine 2
Product 3
Time (h)
1.5
Yield (%)
90
NH2
O
OH
O
k
H
N
O
Ph
NH2
OH
O
H
O
l
2.0
91
O
N
Ph
OMe
OMe
NH2
OH
OH
O
H
O
O
m
n
2.5
3.0
88
85
O
N
Ph
O
H
N
O
NH2
Ph
DOI of original article: 10.1016/j.tetlet.2008.01.044
Corresponding author. Tel./fax: +82 51 581 2348.
E-mail address: jydo@pusan.ac.kr (J. Y. Do).
*
0040-4039/$ - see front matter Ó 2008 Elsevier Ltd. All rights reserved.
doi:10.1016/j.tetlet.2008.02.146

2852
Corrigendum / Tetrahedron Letters 49 (2008) 2851–2852
Table 2
Yields (%) of catalyst recycling reactions
Product
Yields (%)
Initial reaction
90
1st recycle
2nd recycle
80
OH
H
N
O
87