The electron influence of substituents containing trivalent phosphorus

Tsvetkov, E. N.; Lobanov, D. I.; Makhamatkhanov, M. M.; Кабачник, М. И.

doi:10.1016/s0040-4020(01)83069-6

Cited by 25 publications

(4 citation statements)

References 75 publications

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“…The reported value of r p for the -AsPh 2 group is 0.09 [35], which, when referenced to FcH 0/+ , predicts a potential of 0.14 V for the oxidation of dpaf. The less positive potential for the oxidation of dpaf is in good agreement with the pK a values for p-Ph 2 AsC 6 H 4 CO 2 H and p-Ph 2 PC 6 H 4 CO 2 H which show that the arsine is the weaker acid, and therefore the -AsPh 2 group is a better donor than the -PPh 2 group [36].…”

Section: Resultssupporting

confidence: 79%

Derivatives of 1,1′-bis(diphenylphosphino)ferrocene (dppf): Electrochemistry, complexation and the X-ray structures of 1,1′-bis(diphenylphosphino)osmocene (dppo) and [PdCl2(dppo)]

Martinak

Sites

Kolb

et al. 2006

Journal of Organometallic Chemistry

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Section: Resultssupporting

confidence: 79%

Derivatives of 1,1′-bis(diphenylphosphino)ferrocene (dppf): Electrochemistry, complexation and the X-ray structures of 1,1′-bis(diphenylphosphino)osmocene (dppo) and [PdCl2(dppo)]

Martinak

Sites

Kolb

et al. 2006

Journal of Organometallic Chemistry

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“…For many groups NX 1 X 2 there are values of m and/or p based on the ionization of substituted benzoic acids in 1:1 EtOH H 2 O or other aqueous organic solvents 230,237,238 . The significance of some of these values is doubtful, because corrections for tautomerism should have been applied.…”

Section: Electronic Effects Of the Amino Group And Related Groups mentioning

confidence: 99%

Electronic Effects of Nitro, Nitroso, Amino and Related Groups

Shorter¹

2009

Patai's Chemistry of Functional Groups

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“…Soc., 806 (1962). (± )-epigalanthamine (2) by the reduction of the narwedine-type enones (3) and ( 4) prepared from the amides 5 and 6, respectively.4-6 Since natural and synthetic galanthamines appear to possess analgesic activity6•7 comparable to that of morphine, we report an alternative total synthesis of (±) -galanthamine.…”

Section: Studies On the Syntheses Of Heterocyclicmentioning

confidence: 99%

Syntheses of heterocyclic compounds CCCXCVI. Alternative total synthesis of (+-)-galanthamine

Kametani¹,

Shishido²,

Hayashi³

et al. 1971

J. Org. Chem.

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1.2.3.4-Tetrahydro-8-hydroxy-7-methoxy-l-(4-methoxyphenethyl)-2-methylisoquinoline (3).•-A solution of 30 mg of the bromoisoquinoline 9 in 40 ml of ethanol was shaken in a current of hydrogen on 10 mg of Raney nickel at room temperature and atmospheric pressure. After absorption of the calculated amount of hydrogen, the catalyst was filtered off and the filtrate was concentrated in vacuo.The residue was basified with 10% ammonia and extracted with chloroform. The extract was washed with water, dried over Na2S04, and evaporated in vacuo to give 20 mg (83.3%) of A-norhomopetaline (3) as a viscous syrup: mass spectrum m/e 327 (M+); ir (CHCls) 3520 cm-1; uv (EtOH) 279.5 and 284 nm (log e 3.41 and 3.40); nmr r

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The electron influence of substituents containing trivalent phosphorus

Cited by 25 publications

References 75 publications

Derivatives of 1,1′-bis(diphenylphosphino)ferrocene (dppf): Electrochemistry, complexation and the X-ray structures of 1,1′-bis(diphenylphosphino)osmocene (dppo) and [PdCl2(dppo)]

Derivatives of 1,1′-bis(diphenylphosphino)ferrocene (dppf): Electrochemistry, complexation and the X-ray structures of 1,1′-bis(diphenylphosphino)osmocene (dppo) and [PdCl2(dppo)]

Electronic Effects of Nitro, Nitroso, Amino and Related Groups

Syntheses of heterocyclic compounds CCCXCVI. Alternative total synthesis of (+-)-galanthamine

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