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.
Chiral Recognition with Silicon-Stereogenic Silanes: Remarkable Selectivity Factors in the Kinetic Resolution of Donor-Functionalized Alcohols
作者:Hendrik F. T. Klare、Martin Oestreich
DOI:10.1002/anie.200703847
日期:2007.12.10
HAMANA, HIROSHI;SUGASAWA, TSUTOMU, CHEM. LETT., 1983, N 3, 333-336
作者:HAMANA, HIROSHI、SUGASAWA, TSUTOMU
DOI:——
日期:——
QUATERNARY AMMONIUM SALT-ASSISTED SYNTHESIS OF EXTENDED π-SYSTEMS FROM METHYLDIAZINES AND AROMATIC ALDEHYDES<sup>1</sup>
作者:Jean Jacques Vanden Eynde、Laurent Pascal、Yves Van Haverbeke、Philippe Dubois
DOI:10.1081/scc-100105893
日期:2001.1
4-Methyl- and 4,6-dimethylpyrimidines, methyl- and 2,5-dimethylpyrazines, as well as 3-methylpyridazine readily react with aromatic aldehydes in a hot solution of sodium hydroxide in the presence of a catalytic amount of a quaternary ammonium salt and in the absence of any organic solvent to yield the corresponding condensation products.