FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990687948> ?p ?o ?g. }

• W1990687948 endingPage "138" @default.
• W1990687948 startingPage "127" @default.
• W1990687948 abstract "The 5,6-isopropylidene acetal (3) of l-ascorbate 2-phosphate (4) was produced in almost quantitative yield by the action of phosphoryl chloride at 0–5° on 5,6-O-isopropylidene-l-ascorbate (2) in alkali (pH 12–13) containing a high concentration of pyridine. After hydrolytic cleavage of the 5,6-acetal group and removal of inorganic phosphate and chloride, compound 4 was isolated, without chromatographic purification, in 70% yield as its crystalline tricyclohexylammonium salt. When no pyridine was present during the reaction of 2 with phosphoryl chloride in an alkaline solution, it was converted into a mixture of 3 and bis(5,6-O-isopropylidene-l-ascorbate) 2,2'-phosphate-(5). Following removal of the 5,6-protecting groups of 5, the phosphoric diester 6 was isolated in pure form in 32% yield by fractional recrystallization of its barium salt from cold water. Reaction of 2 with phosphoryl chloride in acetone-pyridine gave, after removal of the protecting group, a mixture of four phosphoric esters that was resolved by column chromatography on an ion-exchange resin. Two of the products were identical to 4 and 5, and the third was tentatively identified as the 3-phosphate of l-ascorbic acid; the fourth was not identified. The structures of the phosphoric esters were established by elemental analysis, u.v. and n.m.r. spectroscopy (31P and 1H), and ionization constants." @default.
• W1990687948 created "2016-06-24" @default.
• W1990687948 creator A5007874691 @default.
• W1990687948 creator A5010723174 @default.
• W1990687948 creator A5027132512 @default.
• W1990687948 creator A5050089380 @default.
• W1990687948 creator A5087253445 @default.
• W1990687948 date "1978-11-01" @default.
• W1990687948 modified "2023-10-18" @default.
• W1990687948 title "Chemical synthesis of several phosphoric esters of l-ascorbic acid" @default.
• W1990687948 cites W1560275480 @default.
• W1990687948 cites W182877736 @default.
• W1990687948 cites W1947356373 @default.
• W1990687948 cites W1972272549 @default.
• W1990687948 cites W1972464567 @default.
• W1990687948 cites W1976507367 @default.
• W1990687948 cites W1980153765 @default.
• W1990687948 cites W1986151135 @default.
• W1990687948 cites W1992794586 @default.
• W1990687948 cites W1997148164 @default.
• W1990687948 cites W2013833843 @default.
• W1990687948 cites W2015254769 @default.
• W1990687948 cites W2032947256 @default.
• W1990687948 cites W2034912339 @default.
• W1990687948 cites W2042100060 @default.
• W1990687948 cites W2050370093 @default.
• W1990687948 cites W2066444129 @default.
• W1990687948 cites W2315852432 @default.
• W1990687948 cites W2330825679 @default.
• W1990687948 cites W4252872318 @default.
• W1990687948 doi "https://doi.org/10.1016/s0008-6215(00)83736-2" @default.
• W1990687948 hasPublicationYear "1978" @default.
• W1990687948 type Work @default.
• W1990687948 sameAs 1990687948 @default.
• W1990687948 citedByCount "28" @default.
• W1990687948 countsByYear W19906879482015 @default.
• W1990687948 countsByYear W19906879482017 @default.
• W1990687948 countsByYear W19906879482018 @default.
• W1990687948 countsByYear W19906879482020 @default.
• W1990687948 countsByYear W19906879482021 @default.
• W1990687948 countsByYear W19906879482022 @default.
• W1990687948 crossrefType "journal-article" @default.
• W1990687948 hasAuthorship W1990687948A5007874691 @default.
• W1990687948 hasAuthorship W1990687948A5010723174 @default.
• W1990687948 hasAuthorship W1990687948A5027132512 @default.
• W1990687948 hasAuthorship W1990687948A5050089380 @default.
• W1990687948 hasAuthorship W1990687948A5087253445 @default.
• W1990687948 hasConcept C134121241 @default.
• W1990687948 hasConcept C13965031 @default.
• W1990687948 hasConcept C155647269 @default.
• W1990687948 hasConcept C178790620 @default.
• W1990687948 hasConcept C179104552 @default.
• W1990687948 hasConcept C185592680 @default.
• W1990687948 hasConcept C191897082 @default.
• W1990687948 hasConcept C192562407 @default.
• W1990687948 hasConcept C2776622989 @default.
• W1990687948 hasConcept C2777132085 @default.
• W1990687948 hasConcept C2777731525 @default.
• W1990687948 hasConcept C2778695967 @default.
• W1990687948 hasConcept C2779485729 @default.
• W1990687948 hasConcept C2780478551 @default.
• W1990687948 hasConcept C2986274086 @default.
• W1990687948 hasConcept C31903555 @default.
• W1990687948 hasConcept C94412978 @default.
• W1990687948 hasConceptScore W1990687948C134121241 @default.
• W1990687948 hasConceptScore W1990687948C13965031 @default.
• W1990687948 hasConceptScore W1990687948C155647269 @default.
• W1990687948 hasConceptScore W1990687948C178790620 @default.
• W1990687948 hasConceptScore W1990687948C179104552 @default.
• W1990687948 hasConceptScore W1990687948C185592680 @default.
• W1990687948 hasConceptScore W1990687948C191897082 @default.
• W1990687948 hasConceptScore W1990687948C192562407 @default.
• W1990687948 hasConceptScore W1990687948C2776622989 @default.
• W1990687948 hasConceptScore W1990687948C2777132085 @default.
• W1990687948 hasConceptScore W1990687948C2777731525 @default.
• W1990687948 hasConceptScore W1990687948C2778695967 @default.
• W1990687948 hasConceptScore W1990687948C2779485729 @default.
• W1990687948 hasConceptScore W1990687948C2780478551 @default.
• W1990687948 hasConceptScore W1990687948C2986274086 @default.
• W1990687948 hasConceptScore W1990687948C31903555 @default.
• W1990687948 hasConceptScore W1990687948C94412978 @default.
• W1990687948 hasIssue "1" @default.
• W1990687948 hasLocation W19906879481 @default.
• W1990687948 hasOpenAccess W1990687948 @default.
• W1990687948 hasPrimaryLocation W19906879481 @default.
• W1990687948 hasRelatedWork W1987314752 @default.
• W1990687948 hasRelatedWork W1990203754 @default.
• W1990687948 hasRelatedWork W1991317746 @default.
• W1990687948 hasRelatedWork W2004832763 @default.
• W1990687948 hasRelatedWork W2051678814 @default.
• W1990687948 hasRelatedWork W2057457746 @default.
• W1990687948 hasRelatedWork W2134702784 @default.
• W1990687948 hasRelatedWork W2322652070 @default.
• W1990687948 hasRelatedWork W2951272254 @default.
• W1990687948 hasRelatedWork W3004866090 @default.
• W1990687948 hasVolume "67" @default.
• W1990687948 isParatext "false" @default.
• W1990687948 isRetracted "false" @default.

• next