The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 599
... structure of an alkaloid can be determined by chemical reactions that break the intact molecule into fragments , the structures of which are al- ready known or can be determined . In ideal cases , all of the carbon and nitrogen atoms ...
... structure of an alkaloid can be determined by chemical reactions that break the intact molecule into fragments , the structures of which are al- ready known or can be determined . In ideal cases , all of the carbon and nitrogen atoms ...
Page 600
... structure of calycanine was shown by synthesis not to be an indole derivative . An X - ray diffraction study of the calycanthine molecule showed that its structure did not include indole nuclei , and it was concluded that the extreme ...
... structure of calycanine was shown by synthesis not to be an indole derivative . An X - ray diffraction study of the calycanthine molecule showed that its structure did not include indole nuclei , and it was concluded that the extreme ...
Page 601
... structure of which is CO2H + CHẠNH , methylphenylglyoxal methylamine OH CH , CH , COC CHCH NCH , NHCH , CH2O CH2O ( acid product ) The structure of this compound was proved by synthesis . Nonetheless , structures of morphine , based ...
... structure of which is CO2H + CHẠNH , methylphenylglyoxal methylamine OH CH , CH , COC CHCH NCH , NHCH , CH2O CH2O ( acid product ) The structure of this compound was proved by synthesis . Nonetheless , structures of morphine , based ...
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