2-ferf-Butyl-4-methoxyphenol

In addition to MMA, a variety of methacrylic esters were polymerized rapidly to the corresponding polymers with narrow MWDs in the presence of methylaluminum bis(2-ferf-butyl-4-methoxyphenolate) (3c). The successful examples include ethyl methacrylate (EMA), isopropyl methacrylate ( °PMA), n-butyl methacrylate ("BMA), isobutyl methacrylate ( °BMA), benzyl methacrylate (BnMA), and dodecyl methacrylate (Cj2MA), where the Mn values were all close to the predicted values (Mn j ) with the Mw/Mn ratios below 1.1 (Table 3, runs 1-4,6,7). The polymerization of ferf-butyl methacrylate ( BMA) is the only exception, where the monomer conversion hardly increased even after 24 h. 

Probtom 19.31 From readily available phenolic compounds, synthesize the antioxidant food preservatives (a) BHA (ferr-butylatedhydroxyanisole, a mixture of 2- and 3-ferf-butyl-4-methoxyphenol (b) bht (rert-butylated hydroxytoluene). ... 

The Ga-Li-BINOL complex 4 was discovered by Shibasaki to catalyze the ring opening of epoxides with 4-methoxyphenol. Elevated temperatures and high catalyst loadings render this catalyst system less practical than the ferf-butyl thiol counterpart,but the hydroxy aryl monoethers produced in this reaction do offer access to valuable monoprotected 1,2-frans-diols (Scheme 8) [21]. 

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