In:
European Journal of Organic Chemistry, Wiley, Vol. 2020, No. 15 ( 2020-04-23), p. 2260-2263
Abstract:
The chemoselective synthesis of 2‐(phenoxymethyl)oxirane from allyloxybenzene is achieved with over 90 % yield in a sustainable reaction system using titanium‐substituted silicalite‐1 (TS‐1) as a catalyst, hydrogen peroxide (H 2 O 2 ) as an oxidant, and a mixture of MeOH/MeCN as a solvent at 40 °C. No acid‐catalyzed side reactions prompted by the Lewis acidity of the Ti active site in TS‐1 are observed. The TS‐1 catalyst can also promote the formation of oxiranes from various p ‐substituted allyloxybenzenes in good yields. The reaction mechanism is investigated through the reaction with other allyloxy compounds. The results, which are supported by DFT calculations, indicate that an active species of Ti peroxides formed from the reaction of TS‐1 with H 2 O 2 selectively oxidizes the allyloxybenzene to 2‐(phenoxymethyl)oxirane.
Type of Medium:
Online Resource
ISSN:
1434-193X
,
1099-0690
DOI:
10.1002/ejoc.v2020.15
DOI:
10.1002/ejoc.202000249
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
1475010-7
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