Reference health
Formation of methyl methacrylate by condensation of methyl propionate with formaldehyde over silica-supported cesium hydroxide catalysts
8/8 checkable references clean · checked 2026-07-22
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
4 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 8 checked references that resolve
resolves10.1016/S0166-9834(00)80117-7
Vapor-Phase Aldol Condensation of Formaldehyde with Propionic Acid on Vanadium Pentoxide—Phosphorus Pentoxide
resolves10.1016/0021-9517(90)90126-5
The production of methacrylic acid by the vapor-phase aldol condensation of propionic acid with formaldehyde
resolves10.1016/S0166-9834(00)81725-X
Reaction of propionic acid with methylal over vanadium-silicon-phosphorus oxide
resolves10.1246/bcsj.63.1217
The Production of Methacrylic Acid by the Vapor-Phase Aldol Condensation over V–Si–P Ternary Oxide Catalyst
resolves10.1016/S0926-860X(03)00449-6
Production of methacrylic acid by vapor-phase aldol condensation of propionic acid with formaldehyde over silica-supported metal phosphate catalysts
resolves10.1246/bcsj.63.3722
Reaction of Methyl Propionate with Methylal over V–Si–P Ternary Oxide Catalysts
The 4 references without a DOI — listed, not checked
no DOI — not checkedM. Ai, in: J.J. Spivey (Ed.), Catalysis, vol. 12, Chapter 5, The Royal Society of Chemistry, 1996.
no DOI — not checkedM. Ookita (Mitsubishi Rayon Co.), Japan Patent, 2 966 650, 1999.
no DOI — not checkedS.M. Jackson et al., (ICI), Intern. Patent, WO 99/52628, 1999.
no DOI — not checked10.1016/j.apcata.2005.04.027_bib7_1
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-22 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
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