80404-53-1Relevant articles and documents
Palladium-Catalyzed Regio- and Stereoselective Coupling-Addition of Propiolates with Arylsulfonyl Hydrazides: A Pattern for Difunctionalization of Alkynes
Liu, Lixin,Sun, Kang,Su, Lebin,Dong, Jianyu,Cheng, Lei,Zhu, Xiaodong,Au, Chak-Tong,Zhou, Yongbo,Yin, Shuang-Feng
, p. 4023 - 4027 (2018/07/15)
A new pattern for difunctionalization of alkynes via a palladium-catalyzed regio- and stereoselective coupling-addition of propiolates with arylsulfonyl hydrazides is disclosed. The approach enables the synthesis of various highly functionalized (E)-vinylsulfones in satisfactory yields. Arylsulfonyl hydrazides act as both aryl and sulfonyl sources via selective cleavage of Ar(C)-S and S-N bonds, which are simultaneously incorporated onto the terminal carbon atom of an alkyne molecule.
Thioindigo precursor: Control of polymorph of thioindigo
Uno, Hidemitsu,Moriyama, Kana,Ishikawa, Takayuki,Ono, Noboru,Yahiro, Hidenori
, p. 9083 - 9086 (2007/10/03)
The precursor was converted to thioindigo with P21/c structure by heating. 2,2′-Bi[-3(2H)-thiophenon]ylidene with two bicyclo[2.2.2]-octadiene moieties was quantitatively converted to thioindigo by the retro-Diels-Alder reaction. The thioindigo solid obtained from the precursor had the P21/c structure which was different from the commercial thioindigo samples (P21/n).