Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Lee McLaren"'
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :901-910
A series of novel 2-oxo esters with protected alcohols at the 3-, 4-, 5-, 6- and 7-positions has been prepared either via coupling of an aldehyde with an organometallic reagent (Zn, In or Cr) or via a one-carbon homologation of the precursor acid. A
Publikováno v:
Tetrahedron Letters. 40:1069-1072
An efficient synthesis of (S)- and (R)-3-hydroxypiperidin-2-ones from methyl 5-nitro-2-oxopentanoate is described. A one-pot enzyme catalysed hydrolysis of the ester and reduction of the ketone gave enantiopure 2-hydroxy-5-nitropentanoic acids which
Publikováno v:
Tetrahedron Letters. 34:5519-5522
A short synthesis of the novel antibiotic aranorosin is described which employs a novel hypervalent iodine-mediated oxidative hydroxylation of a tyrosinal derivative in the key step. A similar procedure was employed to prepare 6′-epiaranorosin, and
Publikováno v:
ChemInform. 24
A short synthesis of the novel antibiotic aranorosin is described which employs a novel hypervalent iodine-mediated oxidative hydroxylation of a tyrosinal derivative in the key step. A similar procedure was employed to prepare 6′-epiaranorosin, and
Publikováno v:
ChemInform. 26
Oxidation of para-substituted phenols with [bis(trifluoroacetoxy)iodo] benzene (BTIB) in aqueous acetonitrile at 0 °C gives p-quinols in moderate to good yields; higher yields are obtained when tripropylsilyl ethers of phenols are used.
Publikováno v:
ChemInform. 30
An efficient synthesis of (S)- and (R)-3-hydroxypiperidin-2-ones from methyl 5-nitro-2-oxopentanoate is described. A one-pot enzyme catalysed hydrolysis of the ester and reduction of the ketone gave enantiopure 2-hydroxy-5-nitropentanoic acids which
Publikováno v:
ChemInform. 31
Autor:
Mara Lee McLaren
Publikováno v:
Linear Algebra and its Applications. 127:601-616
This paper shows how the likelihood ratio for testing the equality of two variance-covariance matrices decomposes asymptotically into two separate tests, one for equality of the latent roots or eigenvalues, and the other for equality of the eigenvect
Publikováno v:
Synlett. 1992:201-203
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :1385
A short synthesis of the novel antibiotic aranorosin in chiral form is described which employs (i) a novel hypervalent iodine-mediated oxidative hydroxylation of a tyrosinal derivative and (ii) a stereocontrolled cis-bisepoxidation in the key steps.