Results 301 to 310 of about 36,653 (344)
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Journal of the American Chemical Society, 1952
Phytofluene ex tomatoes is subject to cis-trans isomerization. The native form in the tomatoes studied is a relatively thermostable but photosensitive cis compound that may rearrange spontaneously or when illuminated or under the catalytic influence of iodine in light. It then yields the more stable all-trans form possessing stronger adsorbability. The
Petracek, F. J., Zechmeister, L.
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Phytofluene ex tomatoes is subject to cis-trans isomerization. The native form in the tomatoes studied is a relatively thermostable but photosensitive cis compound that may rearrange spontaneously or when illuminated or under the catalytic influence of iodine in light. It then yields the more stable all-trans form possessing stronger adsorbability. The
Petracek, F. J., Zechmeister, L.
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, 1999
Polymorphs of the charge transfer salt (bedt-ttf)4[(H3O)- CrIII(C2O4)3]·PhCN [bedt-ttf = bis(ethylenedithio)tetrathiafulvalene] which are either superconducting or semiconducting differ in the spatial distribution of Δ and Λ enantiomers of [Cr(C2O4)3]3 ...
Lee Martin +5 more
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Polymorphs of the charge transfer salt (bedt-ttf)4[(H3O)- CrIII(C2O4)3]·PhCN [bedt-ttf = bis(ethylenedithio)tetrathiafulvalene] which are either superconducting or semiconducting differ in the spatial distribution of Δ and Λ enantiomers of [Cr(C2O4)3]3 ...
Lee Martin +5 more
semanticscholar +1 more source
Biochemistry, 1994
Guanylin is a 15 amino acid mammalian hormone containing two disulfide bonds. Guanylin shares sequence similarity with the bacterial heat-stable enterotoxin (STa) and is capable of binding to and stimulating the STa guanylyl cyclase receptor ...
N. Skelton +4 more
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Guanylin is a 15 amino acid mammalian hormone containing two disulfide bonds. Guanylin shares sequence similarity with the bacterial heat-stable enterotoxin (STa) and is capable of binding to and stimulating the STa guanylyl cyclase receptor ...
N. Skelton +4 more
semanticscholar +1 more source
1949
Publisher Summary This chapter focuses on stereoisomeric provitamins A. The provitamins A belong to the carotene-like polyene pigments, the so-called carotenoids. The four provitamins A which are practically most important are the three C 40 H 56 -hydrocarbons, α-, β-, and γ-carotene, and a monohydroxy-β-carotene, termed cryptoxanthin, C 40 H 55 .OH.
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Publisher Summary This chapter focuses on stereoisomeric provitamins A. The provitamins A belong to the carotene-like polyene pigments, the so-called carotenoids. The four provitamins A which are practically most important are the three C 40 H 56 -hydrocarbons, α-, β-, and γ-carotene, and a monohydroxy-β-carotene, termed cryptoxanthin, C 40 H 55 .OH.
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Stereoisomerism in polyesters and polyamides
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 19581. A simplified method for preparing macromolecular polyesters from dicarboxylic acids and glycols with azeotropic removal of water was developed. This method is applicable to the preparation of optically active and racemic polyesters.
M. V. Volkenshtein, Zh. S. Sogornonyants
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THE NUMBER OF STEREOISOMERIC AND NON-STEREOISOMERIC PARAFFIN HYDROCARBONS [PDF]
Journal of the American Chemical Society, 1932 Charles M. Blair, Henry R. Henze
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Stereoisomerization of Episulfides [PDF]
Synthesis, 1972 K. Jankowski, R. Harvey
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Stereoisomerism and amine oxidase
Pharmacological Research Communications, 1988Philippe Dostert, M. Strolin Benedetti
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Stereoisomerism of carbon compounds
Journal of Chemical Education, 1961The purpose of this article is to suggest a different setting for the classification of the various types of stereoisomerism commonly encountered in organic chemistry, with the view to providing a better correlation with contemporary concepts of atomic and molecular structure.
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