2,6-Di-tert-butylphenol
Singlet oxygen


Liu, L.-P.; Wang, D.-Y.; Xiao, X.-L.
Acta Chim. Sin. (Huaxue Xuebao) 47, 456-460 (1989)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products
Reference Reaction: 2,6-Di-tert-butyl-4-methylphenol + 1O2* ®
Solvent: Benzene

kreact = 2.0 × 104(L mol-1 s-1), kreference = 1.2 × 105(L mol-1 s-1)

Experimental method: Photolysis
Data type: Relative value measured by steady state method

Photosensitizer = Hypocrellin A.


Liu, L.-P.; Wang, D.-Y.; Xiao, X.-L.
Acta Chim. Sin. (Huaxue Xuebao) 47, 456-460 (1989)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products
Reference Reaction: 2,6-Di-tert-butyl-4-methylphenol + 1O2* ®
Solvent: Methanol

kreact = 3.0 × 104(L mol-1 s-1), kreference = 2.1 × 105(L mol-1 s-1)

Experimental method: Photolysis
Data type: Relative value measured by steady state method

Photosensitizer = Hypocrellin A.


Bensasson, R.V.; Rougee, M.
C. R. Acad. Sci., Ser. 3 307, 807-810 (1988)

Scurlock, R.; Rougee, M.; Bensasson, R.V.
Free Radical Res. Commun. 8, 251-258 (1990)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products and/or physical quenching
Solvent: CD3OD

k = 2.6 × 105(L mol-1 s-1), T = 293K

Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 532 nm

Photosensitizer = Hematoporphyrin IX. [Indicator] = 3× 10-3-20 (mol L-1).


Rabek, J.F.; Ranby, B.; Arct, J.; Liu, R.
J. Photochem. 25, 519-536 (1984)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products and/or physical quenching
Solvent: Methylene chloride

k = 7.5 × 105(L mol-1 s-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator

Photosensitizer = Indicator = Rubrene; k for indicator = 7.3 × 107 L/(mol·s); kd not given.


Snyakin, A.P.; Samsonova, L.V.; Shlyapintokh, V.Ya.; Ershov, V.V.
Bull. Acad. Sci. USSR, Div. Chem. Sci. 27, 46-52 (1978)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products and/or physical quenching
Solvent: 1-BuOH

k = 1.7 × 106(L mol-1 s-1), T = 293K

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator

Photosensitizer = Methylene Blue; Indicator = Naphthalene; used solvent kd = 5.2 × 104 s-1; k for indicator = 5.2 × 108 L/(mol·s).


Thomas, M.J.; Foote, C.S.
Photochem. Photobiol. 27, 683-693 (1978)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products and/or physical quenching
Reference Reaction: 2-Methyl-2-pentene + 1O2* ®
Solvent: C6H6

k = 3.2 × 104(L mol-1 s-1), bref = 5.3 × 10-2(mol L-1), kreference = 7.6 × 105(L mol-1 s-1)

Experimental method: Photolysis
Analytical method: gas chromatography
Data type: Relative value measured by steady state method

Photosensitizer = 5,10,15,20-Tetraphenylporphinatozinc(II);


Thomas, M.J.; Foote, C.S.
Photochem. Photobiol. 27, 683-693 (1978)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products and/or physical quenching
Solvent: MeOH

k = 1.0 × 106(L mol-1 s-1), b = 1.1 × 10-1(mol L-1)

Experimental method: Photolysis
Analytical method: vis-UV emission
Data type: Derived from steady state measurements using indicator

Photosensitizer = Methylene Blue; Indicator = 2,5-Diphenylfuran. used solvent kd = 1.2 × 105 s-1.


Matsuura, T.; Yoshimura, N.; Nishinaga, A.; Saito, I.
Tetrahedron 28, 4933-4938 (1972)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products
Reference Reaction: Linalool + 1O2* ®
Solvent: CH2Cl2

k/kreference = 4.2 × 10-2

Experimental method: Chemical reaction
Analytical method: VPC
Data type: Relative value measured by steady state method

1O2* from (PhO)3PO3. meas. k/kref = 0.042.


Matsuura, T.; Yoshimura, N.; Nishinaga, A.; Saito, I.
Tetrahedron 28, 4933-4938 (1972)

Reaction: 2,6-Di-tert-butylphenol + 1O2* ® products
Reference Reaction: Linalool + 1O2* ®
Solvent: MeOH

k/kreference = 7.1 × 10-2

Experimental method: Photolysis
Analytical method: VPC
Data type: Relative value measured by steady state method

Photosensitizer = Rose Bengal dianion. meas. k/kref = 0.071.


back...