Oxocarbons and Related Compounds; Part 15. Meerwein-Arylation of Semisquaric Acid and Semisquaric Amides. A General Method for the Preparation of 3-Aryl-4-hydroxy- and 3-Amino-4-aryl-3-cyclobutene-1,2-diones Meerwein-arylation of semisquaric acid (1) and semisquaric amides 4 has been found to afford general routes to 3-aryl-4-hydroxy-3-cyclobutene-1,2-diones 3 and 3-amino-4-aryl-3-cyclobutene-1,2-diones 5, respectively.
氧碳和相关化合物;第15部分。半
方酸和半方酰胺的Meerwein-芳基化。制备3-芳基-
4-羟基和3-
氨基-4-芳基-
3-环丁烯-1,2-二酮的一般方法。对半
方酸(1)和半方酰胺(4)的Meerwein芳基化发现提供了制备3-芳基-
4-羟基-
3-环丁烯-1,2-二酮(3)和3-
氨基-4-芳基-
3-环丁烯-1,2-二酮(5)的普遍途径。