Patent ID: 9688857
Date: 2017-06-27
CPC Classifications: C07C,C07F,C09B,C09K,G01N,H05B

Claim:
1. A chemical compound represented by the following general having formula (IV): wherein, in the formula, R 2 and R 3 independently represent hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom; R 4 and R 5 independently represent an alkyl group having 1 to 6 carbon atoms, or an aryl group having 1 to 6 carbon atoms; R 6 and R 7 independently represent hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom; R 13 represents a protective group of phenolic hydroxy group; and X represents germanium atom, or tin atom, or a salt thereof.