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π-Face-Selective 1,3-Dipolar Cycloadditions of 3,4-Di- tert -butylthiophene 1-Oxide with 1,3-Dipoles

✍ Scribed by Nakayama, Juzo; Furuya, Tomohiro; Suzuki, Yasuko; Hiraiwa, Suguru; Sugihara, Yoshiaki


Book ID
127224635
Publisher
Taylor and Francis Group
Year
2009
Tongue
English
Weight
335 KB
Volume
184
Category
Article
ISSN
1042-6507

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✍ Takashi Otani; Yoshiaki Sugihara; Akihiko Ishii; Juzo Nakayama 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 238 KB

The reaction of 3,4-di-tert-butylthiophene (2) with N-[(p-tolylsulfonyl)imino]phenyliodinane (TsN=IPh) in the presence of Cu(MeCN)4PF6 in MeCN at room temperature provided ), and 1-(p-tolylsulfonyl)-3,4-di-tertbutylpyrrole (5) as the principal products. The use of 2 in a large excess gave 3 in a bet