- NOVEL PHASE TRANSFER CATALYSTS
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Compounds of formula (I): wherein R1 to R8, and X- are defined herein. Also disclosed are methods of making and using these compounds.
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Page/Page column 8-9
(2012/05/19)
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- A novel hydrazide type organocatalyst for enantioselective Diels-Alder reactions
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The development of a new class of hydrazide type organocatalyst, (4R,5R)-1,3-bis(isopropylamino)-4,5-dihenylimidazolidin-2-one 2a, for enantioselective Diels-Alder reactions between cyclopentadiene and α,β-unsaturated aldehydes are presented. The new organocatalyst 2a promoted the reaction, affording Diels-Alder adducts in good yields with good levels of enantioselectivity.
- Suzuki, Ichiro,Ando, Masafumi,Shimabara, Rumiko,Hirata, Ai,Takeda, Kei
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supporting information; experimental part
p. 3033 - 3040
(2011/05/30)
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- Remarkably efficient charcoal-promoted ring-closing carbonylations
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An efficient, versatile and practical gram-scale preparation of oxazolidinone, imidazolidinone and dioxolanone is achieved. Georg Thieme Verlag Stuttgart.
- Alouane, Nacira,Boutier, Audrey,Baron, Cyriella,Vrancken, Emmanuel,Mangeney, Pierre
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p. 885 - 889
(2007/10/03)
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