AN ALDOL-TYPE REACTION OF ACTIVE METHYL GROUPS OF NITROGEN-CONTAINING HETEROAROMATIC COMPOUNDS
作者:Hiroshi Hamana、Tsutomu Sugasawa
DOI:10.1246/cl.1983.333
日期:1983.3.5
Active methyl groups of nitrogen-containing heteroaromatic compounds react with benzaldehydes in the presence of 9-BBN triflate and diisopropylethylamine in dichloromethane to give the corresponding aldol-type products under mild conditions.
enantioselective secondary benzylic C–Hborylation using benzothiazole as the directing group. Various monosubstituted 2-arylalkylbenzo[d]thiazole were well-tolerated, affording the corresponding products in moderate to good yields with good enantioselectivity. The C–B bond in one borylated product could undergo stereospecific transformations to form a series of C–C and C–heteroatom bonds.
α-Hydroxybenzylation and Benzylidenation of the Methyl Group in 2-Methyl-1,3-benzoxazole and 2-Methyl-1,3-benzothiazole
作者:V. DRYANSKA、Chr. IVANOV
DOI:10.1055/s-1976-23949
日期:——
Condensation of 2-methylbenzoxazole with aromatic aldehydes bearing acidic protons. A convenient coupling in the synthesis of the HIV-reverse transcriptase inhibitor L-696,229
作者:Ioannis N. Houpis、Audrey Molina、Joseph Lynch、Robert A. Reamer、R. P. Volante、Paul J. Reider
DOI:10.1021/jo00063a047
日期:1993.5
Houpis Ioannis N., Molina Audrey, Lynch Joseph, Reamer Robert A., Volante+, J. Org. Chem., 58 (1993) N 11, S 3176-3178
作者:Houpis Ioannis N., Molina Audrey, Lynch Joseph, Reamer Robert A., Volante+