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Science Citation Index

2,6-Difunctionalization of N-Substituted Dithienothiazines via Dilithiation

In this synthesis, a double Wittig olefination sequence was used to form a dithienothiazine symmetrically functionalized -unsaturated ester side chains from high stereoselectivity. This product was obtained in excellent yield.

Müller, T.; Dostert, C.; Czajkowski, D. Synlett. 2013, 25, 371–374.

Stereoselective Synthesis of Both Stereoisomers of β-Fluorostyrene
Derivatives from a Common Intermediate

In this stereoselective synthesis, the trans isomers are obtained by a stereospecific replacement of the silyl group In the presence of water and a fluoride source, whereas the preparation of the cis isomers is achieved by a bromination/desilicobromination sequence followed by reduction of the newly created C-Br bond. It shows that it is highly stereoselective.

Landelle, G.; Turcotte-Savard, M.-O.; Angers, L.; Paquin, J.-F. Org. Lett. 2011, 13, 1568–1571.

Monofluorovinyl Tosylate: A Useful Building Block for the Synthesis of Terminal Vinyl
Monofluorides via Suzuki−Miyaura Coupling

In this journal, in the synthesis of terminal vinyl monofluorides via distinct olefination processes. It mentions that the starting material halofluorocarbons for the synthesis of fluoromethyl phosphorane ylides have been restricted in use by the law due to their polluting effects.

Zhang, H.; Zhou, C.-B.; Chen, Q.-Y.; Xiao, J.-C.; Hong, R. Org. Lett. 2011, 13, 560–563.

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