The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this chapter a set of acyclic carbonyl substrates reacted by an irreversible E1cB mechanism with large anti‐stereospecificity has been investigated. The elimination reactions are homogeneous, unimolecular, and follow a first order rate law. While explaining the synthesis of elimination of reactions methods used for opening of bicyclic oxazines by the formation of a new carbon‐carbon bond to give...
The preparation, stabilization, and characterization of buckybowl anions, ranging from archetypal corannulene to large hemifullerenes, is reviewed in this chapter. The synthetic potential and configurational stability of configurationally labile chiral carbanions next to electron‐withdrawing groups is summarized. A simple and effective ‘umpolung’ of normally electrophilic carbenes can be made available...
This chapter contains sections titled:
E 1cB Mechanisms
E 2 Mechanisms
Pyrolytic Reactions
Elimination Reactions in Synthesis
Other Reactions
References
Some novel sulfur bridged 13- to 30-membered cyclic di- and tetraalkynes derived from 1,2-, 1,3- and 1,4-dihydroxybenzene and 1,2-bis(bromomethyl)benzene were synthesized and their structures confirmed by X-ray analysis. The unexpected formation of 2,6-divinyl-1,4-dithiin during Na 2 S/alumina induced cyclization was also observed and the reaction mechanism is discussed.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.