7-(1,1-Dimethylethyl)-3,4-dihydro-2,2-dimethyl-1-benzopyran-6-ol Singlet oxygen

Li, G.; He, S.; Shi, J.; Zhang, J.
Huadong Huagong Xueyuan Xuebao 17, 431-436 (1991)

Reaction: 7-(1,1-Dimethylethyl)-3,4-dihydro-2,2-dimethyl-1-benzopyran-6-ol + ¹O₂^* ® products
Reference Reaction: DPBF + ¹O₂^* ®
Solvent: MeOH

k_react = 4.7 × 10⁷(L mol^-1 s^-1), k_reference = 8 × 10⁸(L mol^-1 s^-1)

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

Photosensitizer = Methylene Blue.

Li, G.; He, S.; Shi, J.; Zhang, J.
Huadong Huagong Xueyuan Xuebao 17, 431-436 (1991)

Reaction: 7-(1,1-Dimethylethyl)-3,4-dihydro-2,2-dimethyl-1-benzopyran-6-ol + ¹O₂^* ® products and/or physical quenching
Solvent: MeOH

k = 1.9 × 10⁸(L mol^-1 s^-1)

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

Photosensitizer = Methylene Blue; Indicator = 1,3-Diphenylisobenzofuran. used solvent k_d = 1.8 × 10⁵ s^-1.