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Role of Pyridinic Nitrogen on Base Catalyzed Knoevenagel Condensation over Pristine CNx
Author(s) -
Goyal Reena,
Sarkar Bipul,
Sameer Siddharth,
Singhal Nikita,
Bordoloi Ankur
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701319
Subject(s) - knoevenagel condensation , benzaldehyde , catalysis , mesoporous material , materials science , mesoporous silica , selectivity , base (topology) , nitrogen , ethyl cyanoacetate , specific surface area , condensation reaction , elemental analysis , polymer chemistry , chemical engineering , organic chemistry , chemistry , malononitrile , mathematical analysis , mathematics , engineering
On a special focus, we have fabricated N 2 doped mesoporous ordered CNx material using hexagonal SBA‐15 as hard template through polymerisation of hexamethylene tetramine precurssor. The synthesised materials exhibit a very high specific surface area 1332 cm 3 /g and pore volume 1.12 cc/g. The HR‐TEM shows the succesful replication of silica template i.e, tubular structure of material. The catlytic activity of material has been tested for Knoevenagel condensation reaction of benzaldehyde and ethyl cyanoacetate. Almost 93 % conversion of benzaldehyde has been achieved within 20 min of reaction at room temperature with ≥99.9 % product selectivity.