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Synlett 2009(15): 2453-2456  
DOI: 10.1055/s-0029-1217817
LETTER
© Georg Thieme Verlag Stuttgart ˙ New York

Generation of Gold Nanoparticles via Direct Thiol-Capping with THP-Protected Thiols without Deprotection

Atsushi Sugiea, Takashi Sometea, Masaki Matsubarab, Kiyoshi Kanieb, Atsushi Muramatsub, Atsunori Mori*a
a Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
Fax: +81(78)8036181; e-Mail: amori@kobe-u.ac.jp;
b Institute of Multidisciprinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
Further Information

Publication History

Received 9 May 2009
Publication Date:
17 August 2009 (online)

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Abstract

Alkanethiol-capped gold nanoparticles are prepared directly from the corresponding S-tetrahydropyranyl-protected thiols by treatment of HAuCl4 in the presence of a reducing agent such as triethylsilane, NaBH4, or superhydride.

Key words

gold nanoparticle - THP thioether - alkanethiol - triethylsilane - functional group

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8

No reaction of 1 was confirmed by the addition of TES.

9

See Supporting Information.

12

AuNP obtained by the reduction with NaBH4 or LiBH4 shows its weight loss to be ca. 25% (ref. 2b,c).

13

The particle size was similar to the case with unprotected dodecanethiol.

15

Attempted exchange with THP thioether with AuNP was found to be unsuccessful.