Erratum: Highly regio- and stereoselective one-pot synthesis of carbohydrate-based butyrolactones (Organic Letters (2011) 13)

Full text of DOI:10.1021/ol400407z

ORGANIC
LETTERS
XXXX
Vol. XX, No. XX
000–000
Additions and Corrections
Volume 13, 2011
Syed Khalid Yousuf, Debaraj Mukherjee,* L Mallikharjunrao,
and Subhash C. Taneja
Highly Regio- and Stereoselective One-Pot Synthesis of
Carbohydrate-Based Butyrolactones
We regret the following errors in the manuscript and
the Supporting Information. A corrected version of the
Supporting Information has been provided. Specific
corrections are listed below.
Page 578, Table 1. Compound 2a: reported yield 78%,
corrected yield 75%. Compound 2b: reported yield 70%,
corrected yield 65%. Compound 2c: reported yield 70%,
corrected yield 68%. Compound 2d: reported yield 75%,
corrected yield 70%. Compound 2e: reported yield 73%,
corrected yield 71%.
Page 578, Table 2. Compound 4b: reported yield 75%,
corrected yield 73%. Compound 4c: reported yield 72%,
corrected yield 66%. Compound 4d: reported yield 65%,
corrected yield 63%.
Page 579, Supporting Information. Corrected unedited
spectra have been provided for the compounds 2a, 2d, 2e,
4b, and 4c. Experimental details (for 2c, 4e) and spectra
(for 2b, 2c, 4a, 4d, and 4e) have now been provided.
Corrected spectral analysis data are provided for
the following compounds. Compound 2a: “4.52À4.64
(m,4Â CH2Ph)” should read, “4.64À4.52 (m, 4H, CH2Ph)”.
1
Corrected yield is 75%. Compound 2b: Fresh H NMR
spectra are now provided with revised integration for the
region of 2.10 (s, 3H, OAc), 2.08 (s, 3H, OAc), 2.05 (s, 3H,
OAc). Corrected yield is 65%. Compound 2c: the peak
value at 4.29À4.07 was wrongly reported as 1H; it is now
corrected as 4.27 (t, J = 6.4 Hz, 1H), 4.21À4.09 (m, 2H).
Corrected yield is 68%. Compound 2e: the peaks at 2.91
(dd, J = 9.07, 18.18 Hz, 1H), 0.77 (s, 3H, C-CH3) were
missing and are now included. Corrected yield is 71%.
Compound 4a: the peak position at 2.72À2.61 was miss-
ing and is now included as 2.72À2.61 (m, 2H). Com-
pound 4b: the peak at 1.6À1.7 (m, 3H, H-2, CH2) is
incorrect. The corrected peak is 1.7À1.6 (m, 2H, H-2, CH2).

Corrected yield is 73%. Compound 4c: the peak at
4.02À4.00 (m, 2H, H-3, H-5) is incorrect. The corrected
peak is 4.02À4.00 (m,1H). The data 4.71 (t, J = 8.12 Hz),
1.24 (m, 6H) weremissingand are now included. Corrected
1
yielded is 66%. Compound 4d: fresh H NMR spectral
analysis is now provided with revised integration.
Supporting Information Available. Revisedspectral data
and spectra as described above. This material is available
free of charge via the Internet at http://pubs.acs.org.
10.1021/ol400407z
Published on Web
B
Org. Lett., Vol. XX, No. XX, XXXX