Autor: |
John A. Scherschel, Lindsay S. Stelzer, Mohammad Behforouz, Mohammad Reza Ahmadian, Jalal Haddad, Zhengxiang Gu |
Rok vydání: |
1997 |
Předmět: |
|
Zdroj: |
Tetrahedron Letters. 38:2211-2214 |
ISSN: |
0040-4039 |
DOI: |
10.1016/s0040-4039(97)00326-2 |
Popis: |
Novel 1-(t-butyldimethylsilyloxy)-1-aza-1,3-butadienes 1 and 2 are prepared by the reaction of O-(t-butyldimethylsilyloxy)hydroxylamine with methyl vinyl ketone and methacrolein, respectively. Azadienes 1 and 2 through sharing of oxygen nonbonding electrons are activated and thus their Diels-Alder reactions with a number of halobenzoquinones, napthoquinones and N-phenylmaleimide regiospecifically give low to good yields of various pyridine heterocycles. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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