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Restricted rotation involving the tetrahedral carbon. IX isolation of isomers due to restricted rotation about an sp3-sp2 carbon bond.

✍ Scribed by Mikio Nakamura; Michinori Ōki

Publisher: Elsevier Science
Year: 1974
Tongue: French
Weight: 182 KB
Volume: 15
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)82256-5

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✦ Synopsis

Barriers

to rotation about carbon-carbon single bonds are, in general, so small') that isomers due to restricted rotation cannot be isolated at room

📜 SIMILAR VOLUMES

Stable restricted rotation isomers about

Stable restricted rotation isomers about the SP3-SP3 carbon-carbon bonds in 9,9′:9′,9″-terfluorenyls at room temperature

✍ Kazuo Suzuki; Masahiro Minabe 📂 Article 📅 1974 🏛 Elsevier Science 🌐 French ⚖ 227 KB

During the syntheses of fluorene derivatives, we have obtained by the following reactions two kinds of rotational isomers which are stable at room temperature in solution. Compound (A) mp 293'C(dec) was first obtained by Pinck and Hllbert 1) on the Michael reaction of 9,9'-blfluorenylidene (1) with

Isolable rotamers of N-(9-fluorenyl)-pyr

Isolable rotamers of N-(9-fluorenyl)-pyridinium salts owing to restricted rotation around the C(sp3)  N(sp2) single bond

✍ A.T. Balaban; N.D. Gheorghiu; T.S. Balaban 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 240 KB