ynamides) as a new subgroup of ynamides. Owing to the alkynyl motif on the nitrogen atom, alpha-hydroxy ynamides were easily isomerized to the corresponding ortho-(2-oxazolyl)phenyl ketones in a CuCl-catalyzed tandem decyclization-cyclization reaction under mild conditions.
                                    用有机
金属试剂在N-炔基邻苯二甲
酰亚胺上进行选择性嗜碳单加成反应,得到3-取代的N-炔基-
3-羟基异吲哚啉-1-酮(α-羟基乙酰胺),作为新的乙酰胺基。由于氮原子上的炔基基序,在温和的条件下,CuCl催化的串联脱环-环化反应中,α-羟基乙酰胺很容易异构化为相应的邻-(2-
恶唑基)苯基酮。