	US 11,993,623 B2
	Method for producing phosphorus chemicals from wet process phosphate
Michael Baily Geeson, Boston, MA (US); and Christopher C. Cummins, Dorchester, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Appl. No. 16/762,493
Filed by MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, MA (US)
PCT Filed Nov. 8, 2018, PCT No. PCT/US2018/059814 § 371(c)(1), (2) Date May 7, 2020, PCT Pub. No. WO2019/094584, PCT Pub. Date May 16, 2019.
Claims priority of provisional application 62/685,979, filed on Jun. 16, 2018.
Claims priority of provisional application 62/583,472, filed on Nov. 8, 2017.
Prior Publication US 2021/0188885 A1, Jun. 24, 2021
Int. Cl. C07F 9/50 (2006.01); C01B 25/08 (2006.01); C07F 9/38 (2006.01); C07F 9/6512 (2006.01)

CPC C07F 9/509 (2013.01) [C01B 25/08 (2013.01); C07F 9/3808 (2013.01); C07F 9/5031 (2013.01); C07F 9/6512 (2013.01)]

20 Claims

1. A compound comprising a bis(silyl)phosphide and a cation wherein the silyl is H_nSiX_3-nwhere X is a halogen, alkoxy, aryloxy, amido or arylamido and n is 0, 1, 2 or 3.

9. A method of preparing a bis(silyl)phosphide comprising contacting a phosphate-source with a silane reducing agent wherein the silyl is H_nSiX_4-nwhere X is a halogen, alkoxy, aryloxy, amido or arylamido and n is 1, 2 or 3.

17. A method of preparing a phosphorus chemical comprising contacting a bis(silyl)phosphide with an electrophilic reagent to form the phosphorus chemical wherein the silyl is H_nSiX_3-nwhere X is a halogen, alkoxy, aryloxy, amido or arylamido and n is 0, 1, 2 or 3.