By Frank Northen Magill
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Hawkeye and his intrepid partners make a bold break out by means of canoe from the pursuing Huron Indians as their look for the lacking ladies, Alice and Cora, take them to the wild kingdom of Delaware. whereas Alice is freed, issues do not cross so easily for a distraught Cora. Magua needs to pow-wow with the tribal chief difficult center, with Cora's lifestyles within the stability.
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Additional resources for A review of the literature published during 1981
1981,22,1579. '05 a,@-Unsaturated or aromatic aldehydes give products contaminated with j3- hydroxyacetylenes. Analogous reactions with 1-trimethylsilylbut-2-yne are preferably performed at low temperatures (-60 "C) with titanium tetrachloride as catalyst. 208 X = NMe2 or OMe Y = N M e 2 , 0 M e , o r OH 1,4-Dialkoxy-2-alkynes (169) isomerize smoothly to the corresponding 1,2dienes (170) when treated with a catalytic quantity of potassium t - b u t o ~ i d e . ~ ' ~ The solvent of choice depends on whether or not the starting material has alkyl substituents.
A. Perry, Tetrahedron, 1981, 37,4027. Saturated and Unsaturated Hydrocarbons 23 (76) Reagents: i, Me,CuLi; ii, Me,SiCI; iii, PhSCH(CI1Pr"; iv, Raney Ni; v, PTAB; vi, HBr; vii, DBU Scheme 39 On heating, the p- silylsulphoxide (77) undergoes rapid syn- elimination to give the enone (78). g. AgN0, Scheme 40 '03 I. Fleming and D. A. , 1981, 22, 5095. I. Cutting and P. J. Parsons, Tetrahedron Len.. 1981, 22, 2021. 24 General and Synthetic Methods a-Phenylselenoaldehydes, which are readily converted into a,@-unsaturated aldehydes, can be formed directly under mild conditions from unactivated aldehydes using N,N- diethylbenzeneselenamide.
Kezar, 111, J. Org. , 1981, 46, 2920;D. Saindane, C. Barnurn, H. Ensley, and P. , 1981,22,3043. R. Antonioletti, M. D'Auria, G. Piancatelli, and A. , 1981,22, 1041. R. Brittelli, J. Org. , 1981,46,2514. Serota, J. R. Simon, E. B. Murray, and W. M. Org. , 1981,46,4147. -J. Brunet, C. Sidot, and P. , 1981,22,1013. 122Importantly, carbon replaces boron with retention of configuration, so the complete sequence constitutes a stereo- and regio-specific anti-Markownikoff hydrocarboxylation of acetylenes (Scheme 46).
A review of the literature published during 1981 by Frank Northen Magill