Chemical News and Journal of Industrial Science, Tomy 109-110Chemical news office., 1914 |
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Strona 9
... substances : - " Chrysophanul " ( see Note ) ( chrysophanolanthranol ) ; " emodinol " ( emodin anthranol ) ; the methyl ethers of both these substances ; and a new substance , C15H1204 , which is designated as chrysarobol . It is stated ...
... substances : - " Chrysophanul " ( see Note ) ( chrysophanolanthranol ) ; " emodinol " ( emodin anthranol ) ; the methyl ethers of both these substances ; and a new substance , C15H1204 , which is designated as chrysarobol . It is stated ...
Strona 18
... substances that are found in leaves . One of these substances of a yellow colour is found in green leaves ; it is this substance which produce the reddening of leaves in autumn . M. Combes , who had obtained outside the organism the ...
... substances that are found in leaves . One of these substances of a yellow colour is found in green leaves ; it is this substance which produce the reddening of leaves in autumn . M. Combes , who had obtained outside the organism the ...
Strona 19
... substances ( in the actual cases considered of two isodynamic forms ) having rotatory powers of opposite sign and different dispersive powers . In the case of esters of such simple constitution as those described in the preceding paper ...
... substances ( in the actual cases considered of two isodynamic forms ) having rotatory powers of opposite sign and different dispersive powers . In the case of esters of such simple constitution as those described in the preceding paper ...
Strona 20
... substances . This method of plotting appears to afford ( in some cases at least ) a means by which a derivative differing in sign from that of the optically active parent substance can be properly designated " d " or " 1 " and also a ...
... substances . This method of plotting appears to afford ( in some cases at least ) a means by which a derivative differing in sign from that of the optically active parent substance can be properly designated " d " or " 1 " and also a ...
Strona 21
... substance , C29H41O3 ° OH ( m . p . 275 ° ) , which , when heated for two hours with alcoholic alkali , gives an isomeride , melting at 315 ° . Both substances yield monoacetyl derivatives . When oleanol itself is oxidised with chromic ...
... substance , C29H41O3 ° OH ( m . p . 275 ° ) , which , when heated for two hours with alcoholic alkali , gives an isomeride , melting at 315 ° . Both substances yield monoacetyl derivatives . When oleanol itself is oxidised with chromic ...
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