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A Mild Photocatalytic Synthesis of Guanidine from Thiourea under Visible Light

Trin Saetan1, Mongkol Sukwattanasinitt1, Sumrit Wacharasindhu1,2

  • 1Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.

Organic Letters
|September 28, 2020
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Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
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