53651-61-9Relevant articles and documents
A highly efficient approach to vanillin starting from 4-cresol
Jiang, Jian-An,Chen, Cheng,Guo, Ying,Liao, Dao-Hua,Pan, Xian-Dao,Ji, Ya-Fei
supporting information, p. 2807 - 2814 (2014/05/06)
A highly efficient approach to the famous flavor and fragrance compound vanillin has been developed starting from 4-cresol with the attention focused on improving the sustainability of all the reactions. The approach involves a three-step sequence of the quasi-quantitative selective clean oxybromination of 4-cresol, the high-yield selective aerobic oxidation of 2-bromo-4-cresol, and the quantitative methoxylation of 3-bromo-4-hydroxybenzaldehyde with the recovery of pure methanol. Herein, the pivotal oxidation and methoxylation reactions are logically investigated and developed into two concise methodologies. As a green alternative, the approach holds significant value for the sustainable manufacturing of vanillin. the Partner Organisations 2014.
SYNTHESIS OF DIQUINONE DERIVATIVES OF DEUTEROPORPHYRIN IX FOR THE STUDY OF THE FIRST STAGE IN THE PROCESS OF PHOTOSYNTHESIS
Borovkov, V. V.,Evstigneeva, R. P.,Makova, S. Z.
, p. 142 - 147 (2007/10/02)
Diquinone derivatives of deuteroporphyrin IX containing covalent bridges of different lengths between the chromophores have been synthesized.The compounds were prepared by the condensation of hydroxy-quinones with deuteroporphyrin IX using a mixed anhydri