FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1967957680> ?p ?o ?g. }

• W1967957680 endingPage "5886" @default.
• W1967957680 startingPage "5880" @default.
• W1967957680 abstract "3,3‘,4,4‘-Tetramethyl-1,1‘-diphosphaferrocene (1) reacts with succinic anhydride in the presence of AlCl3 to give 4-oxo- 4-(3,3‘,4,4‘-tetramethyl-1,1‘-diphosphaferrocen-2-yl)butanoic acid (2) in 80% yield. This complex treated with 1 equiv of W(CO)5(THF) gave a mixture of the products in which the W(CO)5 moiety is coordinated to P(1‘) (3a) and to P(1) (3b) in the ratio ∼ 7:1. With two equiv of W(CO)5(THF) the bis-W(CO)5 adduct (4) was obtained and transformed into the corresponding N-succinimidyl ester (5) by treatment with N-hydroxysuccinimide in dichloromethane in the presence of DCC (dicyclohexylcarbodiimide). This activated ester reacts with benzylamine and glycine methyl ester to give the corresponding amides in good yields. The crystal structures of 2 and 4 have been determined by X-ray diffraction. Both structures show unexpected conformations with short intramolecular P- - -P distances, indicating secondary bonding between phosphorus atoms. This contrasts with the X-ray structure of 1 displaying longer P- - -P distance (no secondary bonding) and theoretical calculations showing destabilizing, repulsive P- - -P interactions in the 1,1‘-diphosphaferrocene system (Ashe, A. J., III; Al-Ahmad, S. Adv. Organomet. Chem 1996, 39, 325, and references therein). Apparently, conformational preferences of 1,1‘-diphosphaferrocenes are small, since they are so easily changed by small changes in the substitution. Furthermore, the structure of 2 shows intermolecular P- - -P secondary bonding, giving rise to the formation of stacking columns along the z axis. The structural differences between 2 and 4 and between the W(CO)5 moiety in 4 and this moiety coordinated to nitrogen in W(CO)5(azaferrocene) complexes have also been analyzed." @default.
• W1967957680 created "2016-06-24" @default.
• W1967957680 creator A5046036862 @default.
• W1967957680 creator A5061827604 @default.
• W1967957680 creator A5089268895 @default.
• W1967957680 creator A5090608045 @default.
• W1967957680 date "1998-12-01" @default.
• W1967957680 modified "2023-09-24" @default.
• W1967957680 title "1,1‘-Diphosphaferrocene Derivatives for Labeling of Molecules of Biological Interest. The X-ray Molecular Structures of 4-Oxo-4-(3,3‘,4,4‘-tetramethyl- 1,1‘-diphosphaferrocen-2-yl)butanoic Acid and Its Bis-W(CO)₅ Complex" @default.
• W1967957680 cites W1969129729 @default.
• W1967957680 cites W1969325865 @default.
• W1967957680 cites W1969482236 @default.
• W1967957680 cites W1970120424 @default.
• W1967957680 cites W1972006102 @default.
• W1967957680 cites W1973926040 @default.
• W1967957680 cites W1974467278 @default.
• W1967957680 cites W1976594034 @default.
• W1967957680 cites W1978551820 @default.
• W1967957680 cites W1981049234 @default.
• W1967957680 cites W1981457548 @default.
• W1967957680 cites W1981985640 @default.
• W1967957680 cites W1982124021 @default.
• W1967957680 cites W1982757715 @default.
• W1967957680 cites W1983197295 @default.
• W1967957680 cites W1991541005 @default.
• W1967957680 cites W1991887129 @default.
• W1967957680 cites W1994346003 @default.
• W1967957680 cites W1996009265 @default.
• W1967957680 cites W1996999446 @default.
• W1967957680 cites W1998281752 @default.
• W1967957680 cites W2003831762 @default.
• W1967957680 cites W2003880609 @default.
• W1967957680 cites W2006875894 @default.
• W1967957680 cites W2014975207 @default.
• W1967957680 cites W2018945953 @default.
• W1967957680 cites W2021265647 @default.
• W1967957680 cites W2022891091 @default.
• W1967957680 cites W2027850050 @default.
• W1967957680 cites W2028647799 @default.
• W1967957680 cites W2038921436 @default.
• W1967957680 cites W2039822340 @default.
• W1967957680 cites W2043765610 @default.
• W1967957680 cites W2045997872 @default.
• W1967957680 cites W2048194065 @default.
• W1967957680 cites W2059688190 @default.
• W1967957680 cites W2063783361 @default.
• W1967957680 cites W2066200799 @default.
• W1967957680 cites W2066625496 @default.
• W1967957680 cites W2075742510 @default.
• W1967957680 cites W2077387316 @default.
• W1967957680 cites W2079536287 @default.
• W1967957680 cites W2082059115 @default.
• W1967957680 cites W2088908786 @default.
• W1967957680 cites W2092539915 @default.
• W1967957680 cites W2093659764 @default.
• W1967957680 cites W2126971857 @default.
• W1967957680 cites W2162656732 @default.
• W1967957680 cites W2168165401 @default.
• W1967957680 cites W2949632687 @default.
• W1967957680 cites W2950698531 @default.
• W1967957680 cites W2952225863 @default.
• W1967957680 cites W4251859770 @default.
• W1967957680 doi "https://doi.org/10.1021/om9803117" @default.
• W1967957680 hasPublicationYear "1998" @default.
• W1967957680 type Work @default.
• W1967957680 sameAs 1967957680 @default.
• W1967957680 citedByCount "16" @default.
• W1967957680 countsByYear W19679576802012 @default.
• W1967957680 countsByYear W19679576802017 @default.
• W1967957680 crossrefType "journal-article" @default.
• W1967957680 hasAuthorship W1967957680A5046036862 @default.
• W1967957680 hasAuthorship W1967957680A5061827604 @default.
• W1967957680 hasAuthorship W1967957680A5089268895 @default.
• W1967957680 hasAuthorship W1967957680A5090608045 @default.
• W1967957680 hasConcept C108204754 @default.
• W1967957680 hasConcept C115624301 @default.
• W1967957680 hasConcept C134121241 @default.
• W1967957680 hasConcept C155647269 @default.
• W1967957680 hasConcept C166950319 @default.
• W1967957680 hasConcept C178790620 @default.
• W1967957680 hasConcept C185592680 @default.
• W1967957680 hasConcept C191897082 @default.
• W1967957680 hasConcept C192562407 @default.
• W1967957680 hasConcept C2776276205 @default.
• W1967957680 hasConcept C2776568683 @default.
• W1967957680 hasConcept C2780400988 @default.
• W1967957680 hasConcept C2780471494 @default.
• W1967957680 hasConcept C32909587 @default.
• W1967957680 hasConcept C33347731 @default.
• W1967957680 hasConcept C71240020 @default.
• W1967957680 hasConcept C75079739 @default.
• W1967957680 hasConcept C8010536 @default.
• W1967957680 hasConceptScore W1967957680C108204754 @default.
• W1967957680 hasConceptScore W1967957680C115624301 @default.
• W1967957680 hasConceptScore W1967957680C134121241 @default.
• W1967957680 hasConceptScore W1967957680C155647269 @default.
• W1967957680 hasConceptScore W1967957680C166950319 @default.
• W1967957680 hasConceptScore W1967957680C178790620 @default.

• next