60135-00-4Relevant articles and documents
The use of Hagemann's Esters to prepare highly functionalized phenols and benzenes
Majetich, George,Allen, Scott
, p. 104 - 124 (2012/11/07)
Hagemann's esters can be converted into highly functionalized phenols or arenes. The systematic functionalization of Hagemann's ester derivatives permits the preparation of tri-and tetraalkyl-substituted phenols or tetra-, penta-, and hexaalkyl-substituted benzenes. Kotnis's aromatization procedure was found to be solvent dependent, and Suzuki couplings were found to be sensitive to steric hindrance. Wittig olefination and ortho-Claisen reactions were reliable means to introduce alkyl substituents at C-4 and/or C-5 positions, respectively. The acid-promoted dehydration of tertiary alcohol 46 to produce enone 47, followed by its selective alkylation (cf. 48) is new. ARKAT USA, Inc.
A Novel, One Pot Synthesis of 4-Carbalkoxy-3-methyl-5-substitutedphenyl-2-cyclohexen-1-ones
Niwas, Shri,Kumar, Shiv,Bhaduri, A. P.
, p. 524 - 525 (2007/10/02)
A novel, one pot synthesis of 4-carbalkoxy-3-methyl-5-substitudedphenyl-2-cyclohexen-1-ones (1-8) has been achieved by reacting appropriately substituted benzaldehyde with methyl or ethyl acetoacetate in presence of piperidine in ethanol.The structures (1