"good solubility in benzene, carbon disulfide, chloroform and carbon tetrachloride and can itself be used as a solvent"
Chlorinated solvents are best, but you should make sure that there is good solubility before using DCM.
http://www.bayertextile.com/product/pages/chemicals/pdf/phosphorus_oxychloride.pdf (http://www.bayertextile.com/product/pages/chemicals/pdf/phosphorus_oxychloride.pdf)
Chloroephedrine (from chlorination of Ephedrine) is an alkyl chloride and nothing else, and the formula is not C6H5-CH(OCl)CH(NHCH3)CH3 (this would constitute an alkyl hypochlorite, and would be very reactive/unstable), it is rather C6H5-CHClCH(NHCH3)CH3
Here are a few links about Chloroephedrine:
Post 392817 (https://www.thevespiary.org/talk/index.php?topic=8513.msg39281700#msg39281700)
(Rhodium: "Toxicity of chloropseudoephedrine/chloroephedrine", Stimulants)
Post 401416 (https://www.thevespiary.org/talk/index.php?topic=7999.msg40141600#msg40141600)
(Rhodium: "Hermann Emde's Ephedrine Chemistry Treatise", Stimulants)