作者:Jack E. Baldwin、Robert M. Adlington、Jeffery C. Bottaro、Jayant N. Kolhe、Ian M. Newington、Matthew W.D. Perry
DOI:10.1016/s0040-4020(01)87648-1
日期:1986.1
The lithium salts of trityl- and diphenyl-4-pyridylmethyl-hydrazones of both aldehydes and ketones react with electrophiles (alkyl halides, aldehydes, ketones, crotonates) at low temperature to form C-trapped azo compounds ; these Intermediates decompose homolytically with loss of nitrogen below room temperature and can be diverted in a synthetically useful way to alkanes, alkenes, alcohols or saturated
The Reactivity of Epoxides with Lithium 2,2,6,6-Tetramethylpiperidide in Combination with Organolithiums or Grignard Reagents
作者:David M. Hodgson、Matthew J. Fleming、Steven J. Stanway
DOI:10.1021/jo070291v
日期:2007.6.1
2-disubstituted epoxides in the presence of LTMP to generate alkenes in a completely regio- and highlystereoselective manner. Arylated alkenes, dienes, allylsilanes, and enynes are accessed using this procedure. The methodology is applied in the synthesis of the roller leaf moth pheromone, (3E,5Z)-dodecadienyl acetate. The corresponding reaction without LTMP has also been examined, and a study using deuterated
Titanium-mediated carbonyl olefinations. 2. Benzylidenations of carbonyl compounds with dibenzyl titanocene
作者:Nicos A. Petasis、Eugene I. Bzowej
DOI:10.1021/jo00031a006
日期:1992.2
Mild thermolysis of carbonyl compounds with dibenzyltitanocene affords phenyl-substituted olefins, enol ethers, and enamines.
Ti(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)(η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub><sup>t</sup>Bu)(CH<sub>2</sub>Ph)<sub>2</sub>; a Probe of the Course of the Petasis Benzylidenation Reaction