Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Lois E. Nice"'
Publikováno v:
The Journal of Organic Chemistry. 70:2109-2119
[reaction: see text] Carbamate deprotonation followed by treatment with CuCN.2LiCl affords alpha-(N-carbamoyl)alkylcuprates which react with propargyl halides, mesylates, tosylates, phosphates, acetates, and epoxides to give alpha-(N-carbamoyl) allen
Publikováno v:
The Journal of Organic Chemistry. 66:2302-2311
The effect of Cu(I) salt (i.e., CuCN, CuCN.2LiCl, CuI), cuprate reagent, sec-butyllithium quality, solvent, and temperature upon the chemical yields obtained in the reactions of alpha-(N-carbamoyl)alkylcuprates [i.e., N-Boc-protected alpha-aminoalkyl
Autor:
R. Karl Dieter, Lois E. Nice
Publikováno v:
Tetrahedron Letters. 40:4293-4296
α-Aminoalkylcuprates prepared from carbamates via sequential deprotonation and treatment with CuCN·2LiCl react with propargyl bromides, mesylates, tosylates, acetates, and epoxides to afford amino allenes via a SN2′ substitution process. Propargy
Publikováno v:
Tetrahedron Letters. 37:2377-2380
Mixtures of oxone and sodium chloride or sodium bromide afford solutions of chlorine or bromine, respectively. These solutions effectively add chlorine and bromine to α,β-enones and alkenes. The method affords improved yields of 3-alkyl-2-halo-2-cy
Publikováno v:
Tetrahedron Letters. 35:57-60
Aldehydes and ketones can be converted to the corresponding p-methoxyphenylethylene acetals and ketals in good to excellent yield. Deprotection can be accomplished under mild conditions to produce uniformly excellent yields of the original carbonyl c
Publikováno v:
Tetrahedron Letters. 34:2741-2744
Primary aliphatic alcohols can be converted to methyl esters using calcium hypochlorite as the oxidant. Primary benzyl alcohols can also be converted efficiently to methyl benzoates.
Publikováno v:
ChemInform. 24
Primary aliphatic alcohols can be converted to methyl esters using calcium hypochlorite as the oxidant. Primary benzyl alcohols can also be converted efficiently to methyl benzoates.
Publikováno v:
ChemInform. 25
Aldehydes and ketones can be converted to the corresponding p-methoxyphenylethylene acetals and ketals in good to excellent yield. Deprotection can be accomplished under mild conditions to produce uniformly excellent yields of the original carbonyl c
Publikováno v:
ChemInform. 27
Publikováno v:
ChemInform. 29