- One-pot synthesis of borolanes by reaction of aluminacyclopentanes with BF3· Et2O
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A selective procedure was developed for the synthesis of substituted borolanes via transmetalation with BF3 · Et2O of 3-alkyl-1-ethylaluminacyclopentanes obtained from the corresponding terminal olefins and AlEt3 in the presence of Cp2ZrCl2 as a catalyst. 3-Substituted 1-fluoroborolanes were isolated and identified as 1 : 1 complexes with EtBF2.
- Khafizova,Khusainova,Tyumkina,Dzhemilev
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p. 755 - 760
(2012/11/07)
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- STAGES OF THE CONDENSATION OF 1,4-BUTANEDIOL IN THE MARKOVNIKOV - GUERBET REACTION
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The condensation of 1,4-butanediol in the presence of its sodium alcoholate and Ni/Cr2O3 leads to the formation of 4-hydroxybutanal and, from the latter, 3-formyl-1,4,7-heptanetriol.The latter exists in equilibrium with 1,7-dihydroxy-3-hydroxymethyl-4-heptanone and 2-hydroxy-2-(1-hydroxymethyl-3-hydroxypropyl)tetrahydrofuran.Dehydration of the latter with the formation of an endocyclic double bond and subsequent isomerization and reduction processes lead to the production of 2-(1-hydroxymethyl-3-hydroxypropyl)tetrahydrofuran.
- Lyubomilov, V. I.,Slesareva, L. A.,Pshenitsyna, V. P.,Slonim, I. Ya.,Bulai, A. Kh.
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p. 1871 - 1874
(2007/10/02)
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