S 70 Solvent-free synthesis of pillar[6]arenes [Electronic resource] / S. Santra, D. S. Kopchuk, I. S. Kovalev, G. V. Zyryanov, A. Majee, V. N. Charushin, O. N. Chupakhin // Green Chemistry. - 2016. - Vol. 18, № 2. - С. 423-426. - Bibliogr. : p. 426 (16 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PILLAR[6]ARENES -- SOLVENT-FREE PROCEDURE Аннотация: An efficient solvent-free procedure for the synthesis of pillar[6]arenes has been developed. The procedure involves the solid-state condensation of finely milled 1,4-dialkoxybenzene and paraformaldehyde by grinding in the presence of a catalytic amt. of H2SO4. The use of org. solvents for the extn. of products has also been avoided. Operational simplicity, compatibility with various 1,4-dialkoxybenzenes, non-chromatog. purifn. technique, high yields and mild reaction conditions are the notable advantages of this procedure. A large scale reaction demonstrated the practical applicability of this methodol. \\\\expert2\\NBO\\Green Chemistry\\2016, v.18, N 2, p.423.pdf |
Synthesis of 2-imidazolines by co-grinding of n-tosylaziridines and nitriles / A. De, A. Majee, S. Santra [et al.] // Mendeleev Communications. - 2020. - Vol. 30, № 2. - P188-189 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 2-IMIDAZOLINES -- AZIRIDINES -- GRINDING -- HETEROCYCLIZATION -- NITRILES -- SOLVENT-FREE REACTIONS Аннотация: Solvent-free solid-state co-grinding of N-tosylaziridines and nitriles in the presence of perchloric acid as the catalyst affords 2-imidazolines in good yields. |