- BIOTRANSFORMATION OF ORGANIC SULFIDES. PART 7. FORMATION OF CHIRAL ISOTHIOCYANATO SULFOXIDES AND RELATED COMPOUNDS BY MICROBIAL BIOTRANSFORMATION
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The fungi Helminthosporium species NRRL 4671 and Mortierella isabellina ATCC 42613 have been used for the biotransformation of a series of isothiocyanatoalkyl methyl sulfides and their synthetic precursors, ω-(methylthio)alkylphthalimides.H. species gave predominantly (S) sulfoxides in all cases; M. isabellina gave (R) isothiocyanatoalkyl methyl sulfoxides, but in the case of two ω-(methylthio)alkylphthalimides substantial conversion of sulfoxide to sulfone resulted in the isolation of the former with predominant (S) configuration.A correction is made of the previously reported configurations of two biotransformation products (Tetrahedron: Asymmetry, 1994, 5, 1129).
- Holland, Herbert L.,Brown, Frances M.,Larsen, Brett G.,Zabic, Mirjana
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p. 1569 - 1574
(2007/10/02)
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- TOTAL SYNTHESIS OF THE RACEMIC ALKALOID DIPTOCARPAMINE
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A route for the synthesis of racemic diptocarpamine from hex-5-enoic acid has been developed.
- Tolstikova, O. V.,Tolstikov, A. G.,Shmakov, V. S.,Galkin, E. G.,Vyrypaev, E. M.,et al.
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p. 199 - 202
(2007/10/02)
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- TOTAL SYNTHESIS OF RACEMIC DIPTOCARPIDINE AND DIPTOCARPILINE
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Convenient methods for the synthesis of racemic diptocarpidine and racemic diptocarpiline have been proposed on the basis of the readily available 6-phthalimidohexylbromide and hept-6-enoic acid.
- Tolstikova, O. V.,Tolstikov, A. G.,Shmakov, V. S.,Galkin, E. G.,Abdrakhmanov, I. B.,Aripova, S. F.
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