The author of 《Coupling of Trifluoroacetaldehyde N-Triftosylhydrazone with Organoboronic Acids for the Synthesis of gem-Difluoroalkenes》 were Ma, Yu; Reddy, Bhoomireddy Rajendra Prasad; Bi, Xihe. And the article was published in Organic Letters in 2019. COA of Formula: C7H9BO3 The author mentioned the following in the article:
The synthesis of alkyl gem-difluoroalkenes remains a difficult task in organic synthesis. Here, a general and efficient approach for tackling this problem by gem-difluoroolefination of trifluoroacetaldehyde N-triftosylhydrazone with organoboronic acids is reported. This protocol is operationally simple, free of transition metals, and suitable for a broad range of organoboronic acids. Moreover, the utility of the products was demonstrated by further conversion of the gem-difluorovinyl group. In the experiment, the researchers used 3-Methoxyphenylboronic acid(cas: 10365-98-7COA of Formula: C7H9BO3)
3-Methoxyphenylboronic acid(cas: 10365-98-7) belongs to boronic acids. Boronic acids are mild Lewis acids which are generally stable and easy to handle, making them important to organic synthesis.COA of Formula: C7H9BO3
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem