Matches in SemOpenAlex for { <https://semopenalex.org/work/W2512854037> ?p ?o ?g. }
Showing items 1 to 58 of
58
with 100 items per page.
- W2512854037 endingPage "7072" @default.
- W2512854037 startingPage "7065" @default.
- W2512854037 abstract "By isolating monoeter and diether produced in the preparation of bilirubindimethylester from crystalline bilirubin with the use of diazomethane, the author studied the techniques of such isolation as well as the spectroscopic and chemical properties of these ethers, and obtained the following results.1. For the isolation of monoether and diether by means of the column chromatography active alumina is most suitable as the adsorbent and chloroform is the best developer.2. By drawing the infrared absorption curve of bilirubindimethylester and its monoether and diether isolated by the above techniques, our on the chemical structural patterns of these substances has been confirmed to be rational.3. Bilirubindimethylester in the form of a chloroform solution has the maximum absorption at 400mμ, and both monoether and diether have the maximum at 420mμ, showing hardly any difference among these compounds.4. With the use of organic solvents such as chloroform, petrolether, ethylacetate, and ethylether, bilirubindimethylester is positive to the direct diazo reaction while monoether and diether prove to be negative.5. Azo dye in the methanol solution of monoether or diether has the maximum absorption at 550mμ, and acidic azo dye by laoding hydrochloric acid to the solution has the maximum absorption at 570mμ.6. The azo dye obtained by means of direct diazo reaction with monether and diether of bilirubindimethylester gradually moves towards the long side of short wave with the lapse of time, and the peak of the absorption curve becomes flat. However, the maximum absorption of the acidic azo dye produced by loading hydrochloric acid does not change but remain constant.7. Monoether and diether of bilirubindimethylesteter are both readily soluble in various organic solvents, but with exception of conc. hydrochloric acid and conc. sulfuric acid, they are soluble neither in acids or alklies.8. In the observations of changes in the color tone monoether and diether in the form of a chlorform solution, taking Gmelin reaction of bilirubin chloroform solution as the control, each shows some differences in the color tone between the case loaded with cone. ferrous chloride aqueous solution and the case loaded with aldehyde reagent. This seems to be dependent upon the stability of each structural pattern." @default.
- W2512854037 created "2016-09-16" @default.
- W2512854037 creator A5026016186 @default.
- W2512854037 date "1959-01-01" @default.
- W2512854037 modified "2023-09-30" @default.
- W2512854037 title "Properties of Monomethoxyl-Bilirubindimethylester and Dimethoxybilirubin Dimethylester" @default.
- W2512854037 cites W1551170318 @default.
- W2512854037 doi "https://doi.org/10.4044/joma1947.71.10-2_7065" @default.
- W2512854037 hasPublicationYear "1959" @default.
- W2512854037 type Work @default.
- W2512854037 sameAs 2512854037 @default.
- W2512854037 citedByCount "0" @default.
- W2512854037 crossrefType "journal-article" @default.
- W2512854037 hasAuthorship W2512854037A5026016186 @default.
- W2512854037 hasBestOaLocation W25128540371 @default.
- W2512854037 hasConcept C125287762 @default.
- W2512854037 hasConcept C159985019 @default.
- W2512854037 hasConcept C178790620 @default.
- W2512854037 hasConcept C185592680 @default.
- W2512854037 hasConcept C192562407 @default.
- W2512854037 hasConcept C2776904781 @default.
- W2512854037 hasConcept C2777436746 @default.
- W2512854037 hasConcept C2779607525 @default.
- W2512854037 hasConcept C2780374730 @default.
- W2512854037 hasConcept C2781144210 @default.
- W2512854037 hasConcept C4725764 @default.
- W2512854037 hasConceptScore W2512854037C125287762 @default.
- W2512854037 hasConceptScore W2512854037C159985019 @default.
- W2512854037 hasConceptScore W2512854037C178790620 @default.
- W2512854037 hasConceptScore W2512854037C185592680 @default.
- W2512854037 hasConceptScore W2512854037C192562407 @default.
- W2512854037 hasConceptScore W2512854037C2776904781 @default.
- W2512854037 hasConceptScore W2512854037C2777436746 @default.
- W2512854037 hasConceptScore W2512854037C2779607525 @default.
- W2512854037 hasConceptScore W2512854037C2780374730 @default.
- W2512854037 hasConceptScore W2512854037C2781144210 @default.
- W2512854037 hasConceptScore W2512854037C4725764 @default.
- W2512854037 hasIssue "10-2" @default.
- W2512854037 hasLocation W25128540371 @default.
- W2512854037 hasOpenAccess W2512854037 @default.
- W2512854037 hasPrimaryLocation W25128540371 @default.
- W2512854037 hasRelatedWork W2026711532 @default.
- W2512854037 hasRelatedWork W2044697954 @default.
- W2512854037 hasRelatedWork W2083236432 @default.
- W2512854037 hasRelatedWork W2142157230 @default.
- W2512854037 hasRelatedWork W2142330786 @default.
- W2512854037 hasRelatedWork W2346841181 @default.
- W2512854037 hasRelatedWork W2362544908 @default.
- W2512854037 hasRelatedWork W2492652275 @default.
- W2512854037 hasRelatedWork W2604158585 @default.
- W2512854037 hasRelatedWork W2951209991 @default.
- W2512854037 hasVolume "71" @default.
- W2512854037 isParatext "false" @default.
- W2512854037 isRetracted "false" @default.
- W2512854037 magId "2512854037" @default.
- W2512854037 workType "article" @default.