TY - JOUR
T1 - Synthesis of 8,16-dimethyl- and 8,16-dimethoxy- 5,13-di-t- butyl[2.2]metacyclophane-1,2,9,10-tetraone
AU - Tsukamoto, Ken ichi
AU - Sahade, Daniel A.
AU - Taniguchi, Masahiko
AU - Sawada, Tsuyoshi
AU - Thiemann, Thies
AU - Mataka, Shuntaro
PY - 1999/6/18
Y1 - 1999/6/18
N2 - Swem oxidation of 8,16-dimethoxy- and 8,16-dimethyl-5,13-di-t-butyl- l,2,9,10-tetrahydroxy[2.2]metacyclophane, 1 and 2, afforded 5,13-di:t-butyl- 10-hydroxy-8,16-dimethoxy[2.2]metacyclophane-1,2,9-trione 3 and 4. By subsequent oxidation with DDQ, 8,16-dimethoxy- and 8,16-dimethyl-5,13-di-t- butyl[2.2]metacyclophane-1,2,9,10-tetraones, 5 and 6, were obtained.
AB - Swem oxidation of 8,16-dimethoxy- and 8,16-dimethyl-5,13-di-t-butyl- l,2,9,10-tetrahydroxy[2.2]metacyclophane, 1 and 2, afforded 5,13-di:t-butyl- 10-hydroxy-8,16-dimethoxy[2.2]metacyclophane-1,2,9-trione 3 and 4. By subsequent oxidation with DDQ, 8,16-dimethoxy- and 8,16-dimethyl-5,13-di-t- butyl[2.2]metacyclophane-1,2,9,10-tetraones, 5 and 6, were obtained.
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U2 - 10.1016/S0040-4039(99)00845-X
DO - 10.1016/S0040-4039(99)00845-X
M3 - Article
AN - SCOPUS:0033580875
SN - 0040-4039
VL - 40
SP - 4691
EP - 4692
JO - Tetrahedron Letters
JF - Tetrahedron Letters
IS - 25
ER -