55357-99-8Relevant academic research and scientific papers
A Convenient Preparation of 6-Substituted-2-methoxy-5,6-dihydro-2H-pyrans via Cyclocondensation of Aldehydes with Danishefsky's Diene
Golebiowski, Adam,Raczko, Jerzy,Jurczak, Janusz
, p. 307 - 310 (2007/10/02)
Cyclocondensation of various aldehydes with Danishefsky's diene, followed by reduction of 2-substituted-2,3-dihydropyran-4-ones, and then by the Ferrier transformation of the resulting 2-substituted-2,3-dihydro-4H-pyran-4-ols, affords 6-substituted-2-meth
Organic Syntheses under High Pressure: Lanthanide-Catalysed Cycloaddition of 1-Methoxybuta-1,3-diene to Carbonyl Compounds
Jurczak, Janusz,Golebiowski, Adam,Bauer, Tomasz
, p. 928 - 929 (2007/10/02)
High-pressure cycloaddition of 1-methoxybuta-1,3-diene to carbonyl compounds is described.The pressure required is successfully reduced to 10 kbar with the use of a lanthanide catalyst.
General Approach to the Synthesis of Naturally Occurring δ-Lactones
Chmielewski, Marek,Jurczak, Janusz
, p. 2230 - 2233 (2007/10/02)
The adducts from thermal and/or high-pressure Diels-Alder reactions between 1-methoxybuta-1,3-diene and carbonyl compounds (glyoxylates, aldehydes) are utilized as the starting materials for the syntheses of naturally occurring δ-lactones.Total syntheses of massoilactone, 6-phenyl-2-pyrone, and 2-methoxy-6-undecyl-5,6-dihydro-2H-pyran are described.A general approach to these syntheses is presented.
