YANO Y.; MATAYOSHI T.; MISU K.; TAGAKI W., PHOSPHORUS AND SULFUR, 1976, 1, NO 1, 25-36
作者:YANO Y.、 MATAYOSHI T.、 MISU K.、 TAGAKI W.
DOI:——
日期:——
Generation, some synthetic uses, and 1,2-vinyl rearrangements of secondary and tertiary homoallyllithiums, including ring contractions and a ring expansion. Remarkable acceleration of the rearrangement by an oxyanionic group
作者:Boguslaw Mudryk、Theodore Cohen
DOI:10.1021/ja00063a001
日期:1993.5
addition of thiophenol to a conjugated enal or enone followed by a Wittig or Peterson olefination, (2) the reaction of a silyl enol ether with a diphenyl dithioacetal catalyzed by stannic chloride, followed by a Peterson olefination, or (3) the treatment of the lithioderivatives of phenyl thioethers or thioacetals or the corresponding cuprates with allyl halides
Use of Aromatic Radical-Anions in the Absence of THF. Tandem Formation and Cyclization of Benzyllithiums Derived from the Attack of Homo- and Bishomoallyllithiums on α-Methylstyrenes: Two-Pot Synthesis of Cuparene<sup>1</sup>
developed. The radical anion can be generated and the reductive lithiation performed in dimethyl ether at -70 degrees C. After the addition of diethyl ether or other solvent, and evaporation of the dimethyl ether in vacuo, the alpha-methylstyrene is added and the solution is warmed to -30 degrees C. When the unsaturated alkyllithium is primary, no adduct forms in THF due to polymerization of the alpha-methylstyrene