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V.A. Efimov, A.L. Kalinkina, O.G. Chakhmakhcheva, T.S. Hill, and K. Jayaraman Nucleic Acids Res. 23 1995 4029 4033
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Roelen, H.C.P.F.1
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0034385487
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Z.S. Cheruvallath, R.L. Carty, M.N. Moore, D.C. Capaldi, A.H. Krotz, P.D. Wheeler, B.J. Turney, S.R. Craig, H.J. Gaus, A.N. Scozzari, P.L. Cole, and V.T. Ravikumar Org. Proc. Res. Dev. 4 2000 199 204
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Cole, P.L.11
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0038110909
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Z.S. Cheruvallath, R.K. Kumar, C. Rentel, D.L. Cole, and V.T. Ravikumar Nucleosides, Nucleotides, Nucleic Acids 22 2003 461 468
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Cheruvallath, Z.S.1
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Cole, D.L.4
Ravikumar, V.T.5
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25
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0033548666
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Z. Zhang, A. Nichols, J.X. Tang, Y. Han, and J.Y. Tang Tetrahedron Lett. 40 1999 2095 2098
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(1999)
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Zhang, Z.1
Nichols, A.2
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Tang, J.Y.5
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30
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11144295141
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note
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According to an examination carried out by our group, di-tert-butyl disulfide does not serve as an effective sulfurizing agent without UV irradiation.
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31
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11144346886
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note
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TEST is commercially available from Gelest and Shin-etsu, Tokyo, Japan. This liquid reagent is freely soluble in various organic solvents including toluene, tetrahydrofuran, acetonitrile, and N-methylimidazole at ambient temperature.
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33
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0034815285
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Y. Hayakawa, R. Kawai, A. Hirata, J. Sugimoto, M. Kataoka, A. Sakakura, M. Hirose, and R. Noyori J. Am. Chem. Soc. 123 2001 8165 8176
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(2001)
J. Am. Chem. Soc.
, vol.123
, pp. 8165-8176
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Hayakawa, Y.1
Kawai, R.2
Hirata, A.3
Sugimoto, J.4
Kataoka, M.5
Sakakura, A.6
Hirose, M.7
Noyori, R.8
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34
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0035886957
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Y. Hayakawa, A. Hirata, J. Sugimoto, R. Kawai, A. Sakakura, and M. Kataoka Tetrahedron 57 2001 8823 8826
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(2001)
Tetrahedron
, vol.57
, pp. 8823-8826
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Hayakawa, Y.1
Hirata, A.2
Sugimoto, J.3
Kawai, R.4
Sakakura, A.5
Kataoka, M.6
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35
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11144284001
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note
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N-Methyl-2-pyrrolidone and HMPA are rather expensive, and HMPA is highly toxic. tert-Butyl alcohol, the melting point of which is ca. 26°C, runs the risk of freezing in the delivery tubes of the synthesizer.
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36
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11144300076
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note
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+ 529.1574, found 529.1893.
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37
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11144259227
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note
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In the solid-phase synthesis of a dinucleoside phosphorothioate, 5 min of sulfurization suffices to obtain a high yield of the product. In contrast, for the synthesis of this size of oligomers, i.e. dimers, more time (at least 10 min) is required for sulfurization in order to obtain a satisfactory yield of the target product.
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38
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11144260853
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note
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According to recent catalogs, the respective prices of TEST and the Beaucage reagent are as follows: TEST costs $280/mol (Gelest), $400/mol (Shin-etsu), $2,500/mol (Fulka), and the Beaucage reagent costs $26,800/mol (Aldrich).
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