A versatile and concise route to functionally substituted γ-butyrolactones and spiro-XXX-butyrolactones (lactone annelation)
作者:Arun K. Mandal、D.G. Jawalkar
DOI:10.1016/s0040-4039(00)83951-9
日期:1986.1
A novel route to the synthesis of functionally substituted XXX-butyrolactones and spiro-γ-butyrolactones, from six-membered cyclic enol-esters, is described.
5-halo-4-fluoro-4,7,7-trimethyl-3-oxabicyclo[4.1.0]heptan-2-ones, process for their preparation and their use for preparing cyclopropanecarboxylic acids
申请人:Aventis CropScience GmbH
公开号:US06337407B1
公开(公告)日:2002-01-08
Compounds of the formula (I),
in which Hal is Cl, Br or I,
are suitable for use as intermediates in the preparation of pyrethroids.
5-halo-4-fluoro-4,7,7-trimethyl-3-oxabicyclo[4.1.0]heptan-2-ones, process for their preparation and their use for preparing cyclopropanecarboxylic acids
申请人:——
公开号:US20020045766A1
公开(公告)日:2002-04-18
Compounds of the formula (I),
1
in which Hal is Cl, Br or I, are suitable for use as intermediates in the preparation of pyrethroids.
Fokin A. A., Gagaewa E. A., Krasuchkiii P. A., Jurtschenko A. G., Zh. organ. khimii, 30 (1994) N 6, S 940
作者:Fokin A. A., Gagaewa E. A., Krasuchkiii P. A., Jurtschenko A. G.
DOI:——
日期:——
5-HALO-4-FLUOR-4,7,7-TRIMETHYL-3-OXABICYCLO 4.1.0]HEPTAN-2-ONE, VERFAHREN ZU IHRER HERSTELLUNG SOWIE IHRE VERWENDUNG ZUR HERSTELLUNG VON CYCLOPROPANCARBONSÄUREN