US 9,809,584 B1
Sulfur-containing oxazine compound and synthesis method thereof
Ying-Ling Liu, Hsinchu (TW); and Ho-Keng Lin, Hsinchu (TW)
Assigned to National Tsing Hua University, Hsinchu (TW)
Filed by National Tsing Hua University, Hsinchu (TW)
Filed on Nov. 22, 2016, as Appl. No. 15/359,369.
Claims priority of application No. 105129438 A (TW), filed on Sep. 10, 2016.
Int. Cl. C07D 413/14 (2006.01); A01N 43/86 (2006.01)
CPC C07D 413/14 (2013.01) [A01N 43/86 (2013.01)] 12 Claims
 
1. A synthesis method of a sulfur-containing benzoxazine compound, comprising:
providing a benzoxazine compound as a precursor and an elemental sulfur as a feedstock, wherein the benzoxazine compound comprises at least one reactive α-methylene (α-CH2) group connecting to an amino group of the benzoxazine; and
reacting the elemental sulfur and the benzoxazine compound directly to form the sulfur-containing benzoxazine compound, wherein a reaction temperature of reacting the elemental sulfur and the benzoxazine compound directly is 115° C. to 300° C.