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Reduction of 124, 125, and 126 with either sodium borohydride or lithium aluminium hydride followed by methylation of the unstable alcohol obtained gave the methyl ethers 130,131, and 132 respectively. Comparisons between the NMR spectra of the methyl ethers 130 and 131 and the homoannulenes 127 and 128 indicated that 130 and 131 are paratropic like the 16 7r-electron methyl ether 114. The methyl ether 132 is atropic. [Pg.139]

See other pages where Lithium aluminium hydride comparison with sodium borohydrid is mentioned: [Pg.71] [Pg.293] [Pg.309]

See also in sourсe #XX -- [ Pg.141 ]

See also in sourсe #XX -- [ Pg.141 ]

See also in sourсe #XX -- [ Pg.141 ]