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  • One-pot synthesis of benzamide over a robust tandem catalyst based on center radially fibrous silica encapsulated TS-1.

One-pot synthesis of benzamide over a robust tandem catalyst based on center radially fibrous silica encapsulated TS-1.

Chemical communications (Cambridge, England) (2013-02-26)
Hong-gen Peng, Le Xu, Haihong Wu, Kun Zhang, Peng Wu
ABSTRACT

A center radially fibrous silica encapsulated TS-1 zeolite (TS-1@KCC-1) has been synthesized in a microemulsion system for the first time. Supporting the Rh(OH)3 species, this novel core-shell structured material serves as a robust bifunctional catalyst for one-pot synthesis of benzamide from benzaldehyde, ammonia and hydrogen peroxide, in which the aldehyde ammoximation and oxime rearrangement occur in a tandem way.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Benzaldehyde, ReagentPlus®, ≥99%
Sigma-Aldrich
Benzaldehyde, purified by redistillation, ≥99.5%
Supelco
Benzaldehyde, analytical standard
Sigma-Aldrich
Benzaldehyde, puriss. p.a., ≥99.0% (GC)
Sigma-Aldrich
Benzaldehyde, ≥98%, FG, FCC
Sigma-Aldrich
Benzaldehyde, natural, FCC, FG
Supelco
Benzaldehyde, Pharmaceutical Secondary Standard; Certified Reference Material
Benzaldehyde, European Pharmacopoeia (EP) Reference Standard