Aerobic photochemical oxidation in mesoporous Ti-MCM-41: Epoxidation of alkenes and oxidation of sulfides

Alexander M. Khenkin; Ronny Neumann

doi:10.1023/a:1019006730653

Aerobic photochemical oxidation in mesoporous Ti-MCM-41: Epoxidation of alkenes and oxidation of sulfides

Alexander M. Khenkin
, Ronny Neumann^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Irradiation with visible light of a secondary alcohol, benzhydrol, in the presence of molecular oxygen within a titanium-substituted mesoporous molecular sieve, Ti-MCM-41, led to the formation of the α-hydroperoxoalcohol and then hydrogen peroxide. The peroxide species reacted in situ with alkenes and sulfides and led to the titanium center catalyzed selective formation of epoxides from alkenes and sulfoxides from sulfides. The cascade of reactions represents a new method for the photoactivation of oxygen in the presence of alcohols.

Original language	English
Pages (from-to)	109-111
Number of pages	3
Journal	Catalysis Letters
Volume	68
Issue number	1-2
DOIs	https://doi.org/10.1023/a:1019006730653
State	Published - Aug 2000
Externally published	Yes

Keywords

Epoxidation
Mesoporous MCM-41
Photoactivation of molecular oxygen

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10.1023/a:1019006730653

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title = "Aerobic photochemical oxidation in mesoporous Ti-MCM-41: Epoxidation of alkenes and oxidation of sulfides",

abstract = "Irradiation with visible light of a secondary alcohol, benzhydrol, in the presence of molecular oxygen within a titanium-substituted mesoporous molecular sieve, Ti-MCM-41, led to the formation of the α-hydroperoxoalcohol and then hydrogen peroxide. The peroxide species reacted in situ with alkenes and sulfides and led to the titanium center catalyzed selective formation of epoxides from alkenes and sulfoxides from sulfides. The cascade of reactions represents a new method for the photoactivation of oxygen in the presence of alcohols.",

keywords = "Epoxidation, Mesoporous MCM-41, Photoactivation of molecular oxygen",

author = "Khenkin, \{Alexander M.\} and Ronny Neumann",

year = "2000",

month = aug,

doi = "10.1023/a:1019006730653",

language = "אנגלית",

volume = "68",

pages = "109--111",

journal = "Catalysis Letters",

issn = "1011-372X",

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T1 - Aerobic photochemical oxidation in mesoporous Ti-MCM-41

T2 - Epoxidation of alkenes and oxidation of sulfides

AU - Khenkin, Alexander M.

AU - Neumann, Ronny

PY - 2000/8

Y1 - 2000/8

N2 - Irradiation with visible light of a secondary alcohol, benzhydrol, in the presence of molecular oxygen within a titanium-substituted mesoporous molecular sieve, Ti-MCM-41, led to the formation of the α-hydroperoxoalcohol and then hydrogen peroxide. The peroxide species reacted in situ with alkenes and sulfides and led to the titanium center catalyzed selective formation of epoxides from alkenes and sulfoxides from sulfides. The cascade of reactions represents a new method for the photoactivation of oxygen in the presence of alcohols.

AB - Irradiation with visible light of a secondary alcohol, benzhydrol, in the presence of molecular oxygen within a titanium-substituted mesoporous molecular sieve, Ti-MCM-41, led to the formation of the α-hydroperoxoalcohol and then hydrogen peroxide. The peroxide species reacted in situ with alkenes and sulfides and led to the titanium center catalyzed selective formation of epoxides from alkenes and sulfoxides from sulfides. The cascade of reactions represents a new method for the photoactivation of oxygen in the presence of alcohols.

KW - Epoxidation

KW - Mesoporous MCM-41

KW - Photoactivation of molecular oxygen

UR - https://www.scopus.com/pages/publications/0034253756

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DO - 10.1023/a:1019006730653

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AN - SCOPUS:0034253756

SN - 1011-372X

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SP - 109

EP - 111

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-2

ER -

Aerobic photochemical oxidation in mesoporous Ti-MCM-41: Epoxidation of alkenes and oxidation of sulfides

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Keywords

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