Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Xavier L. M. Despinoy"'
Autor:
Sarah L. Hinchley, Xavier L. M. Despinoy, Alexander J. Blake, David W. H. Rankin, Frank Blockhuys, Steven G. Harris, Heather E. Robertson, Hamish McNab
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :2195-2201
The molecular structures of pyrrolizin-3-one 1 and 1,2-dihydropyrrolizin-3-one 2 have been investigated in the gas phase by ab initio calculations (both compounds) and electron diffraction using the SARACEN method of structural analysis (parent compo
Autor:
Xavier L. M. Despinoy, Hamish McNab
Publikováno v:
Tetrahedron. 56:6359-6383
Publikováno v:
Synthesis. 2008:1676-1678
( Z)-Urocanic acid and its derivatives can be made stereo-specifically by ring-opening of pyrrolo[1,2- C]imidazol-5-ones in aqueous tetrahydrofuran.
Autor:
Xavier L. M. Despinoy, Bernard A. J. Clark, Hamish McNab, Craig C. Sommerville, Elizabeth Stevenson
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :2049-2052
Flash vacuum pyrolysis (FVP) of 3-azolylpropenyl alcohols 5–7, 12 or 15 at 650–700 °C (10–2–10–3 Torr) causes loss of water and cyclisation to give 3H-pyrrolizine 8 and its analogues 9, 10, 13 and 16; at higher temperatures (e.g. 900 °C)
Autor:
Craig C. Sommerville, Shirley E. Campbell, Paul A. Derbyshire, Hamish McNab, C. Thornley, Roderick Morrison, Xavier L. M. Despinoy, M. C. Comer
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :2195-2202
Monosubstituted pyrrolizin-3-ones 1 with substituents at the 1-, 5-, 6- or 7-positions are prepared in excellent yield by flash vacuum pyrolysis (FVP) of appropriate Meldrum’s acid derivatives 2. The mechanism involves formation of the pyrrol-2-ylm
Publikováno v:
ChemInform. 27
Publikováno v:
ChemInform. 28
Autor:
Hamish McNab, Shirley E. Campbell, C. Thornley, Xavier L. M. Despinoy, M. C. Comer, Roderick Morrison, Paul A. Derbyshire, Craig C. Sommerville
Publikováno v:
ChemInform. 28
Monosubstituted pyrrolizin-3-ones 1 with substituents at the 1-, 5-, 6- or 7-positions are prepared in excellent yield by flash vacuum pyrolysis (FVP) of appropriate Meldrum’s acid derivatives 2. The mechanism involves formation of the pyrrol-2-ylm
Autor:
Hamish McNab, Bernard A. J. Clark, Xavier L. M. Despinoy, Elizabeth Stevenson, Craig C. Sommerville
Publikováno v:
ChemInform. 30
Autor:
Hamish McNab, Xavier L. M. Despinoy
Publikováno v:
Organicbiomolecular chemistry. 7(10)
Flash vacuum pyrolysis (FVP) of dimethyl E- or Z-pyrrol-2-ylbut-2-enedioate at 700 degrees C gave 1-methoxycarbonylpyrrolizin-3-one 1. The sequence involves E- to Z-isomerisation (if necessary), elimination of methanol and cyclisation; the eliminatio