N-(phosphinoalkyl)-n-(thioalkyl)amine derivative, method for producing same, and metal complex thereof

A compound represented by general formula (1A):

• wherein H represents a hydrogen atom, N represents a nitrogen atom, P represents a phosphorus atom, and S represents a sulfur atom;
• L represents lone pair electrons or boron trihydride;
• R1, R2, and R3 each independently represent a group selected from the group consisting of alkyl groups, optionally substituted alkenyl groups, optionally substituted aryl groups, optionally substituted heteroaryl groups, and optionally substituted aralkyl groups;
• R1 and R2 may be bonded to each other to form an optionally substituted ring;
• QL and Q2 each independently represent an alkanediyl group selected from the group consisting of a 1,2-ethanediyl group, a 1,3-propanediyl group, and a 1,4-butanediyl group;
• and Q1 and Q2 may be substituted with groups selected from the group consisting of alkyl groups, optionally substituted alkenyl groups, optionally substituted aryl groups, and optionally substituted aralkyl groups, provided that these groups may be bonded to each other to form an optionally substituted ring.