Chemistry:N-Sulfinyl amine

From HandWiki
line drawing of general structure of an N-sulfinyl amine

An N-sulfinyl amine is an organic group with formula -NSO.[1] There is a double bond between the sulfur and oxygen. N-sulfinyl amine is like sulfur dioxide with one oxygen replaced by nitrogen, or isocyanate, with carbon replaced by sulfur. This group has a bent structure.

Another type of sulfinyl amine has a structure: RN(H)S(O)R" or RR'NS(O)R".[2]

It can be contrasted with sulfonylamino- compounds, with two oxygen atoms on the sulfur.

Preparation

N-sulfinyl amines can be made when thionyl chloride SOCl2 reacts with a primary amine.[3]

Reactions

Mixtures of phosphine and borane derivatives can attach to the NSO chain to yield a R'3P=N+(R)SOBR"3 compound. This can happen with tris(tert-butyl) phosphine and tris-(pentafluorophenyl)borane.[3]

Compounds

formula name CAS No PubChem CID Chemspider ID MW ref
HNSO Thionylimide
Sulfinylamine
Sulfoximine
13817-04-4 139610 123125 63.074 [4]
C6H5NSO N-Sulfinylaniline
N-Thionylaniline
1122-83-4 70739 63904 139.172 [5]
N-sulfinyl-2,6-diethyl benzenamine [5]
N-sulfinyl-2-aminopyrimidine 110526-12-0 14790782 141.148
N-sulfinyl-n-butylamine [6]
N-sulfinyl-n-pentylamine [6]

References

  1. (in en) Krishna's Advanced Organic Chemistry; Volume 1. Krishna Prakashan Media. p. 289. ISBN 9788182830783. https://books.google.com/books?id=AH6vVI4C3PMC&pg=PA289. 
  2. Chen, Wen; Ren, Jian; Wang, Minshou; Dang, Lingjing; Shen, Xianfu; Yang, Xiaodong; Zhang, Hongbin (2014). "Iodine mediated deprotection of N-tert-butanesulfinyl amines: a functional group compatible method". Chem. Commun. 50 (47): 6259–6262. doi:10.1039/C4CC00958D. PMID 24788957. 
  3. 3.0 3.1 Longobardi, Lauren E.; Wolter, Vanessa; Stephan, Douglas W. (12 January 2015). "Frustrated Lewis Pair Activation of an N-Sulfinylamine: A Source of Sulfur Monoxide". Angewandte Chemie International Edition 54 (3): 809–812. doi:10.1002/anie.201409969. PMID 25376102. 
  4. Kresze, G.; Maschke, A.; Albrecht, R.; Bederke, K.; Patzschke, H. P.; Smalla, H.; Trede, A. (February 1962). "Organic N-Sulfinyl Compounds". Angewandte Chemie International Edition in English 1 (2): 89–98. doi:10.1002/anie.196200891. 
  5. 5.0 5.1 Romano, R.M; Della Védova, C.O; Boese, R (January 1999). "A solid state study of the configuration and conformation of OSN–R (R=C6H5 and C6H3(CH3–CH2)2-2,6)". Journal of Molecular Structure 475 (1): 1–4. doi:10.1016/S0022-2860(98)00439-6. 
  6. 6.0 6.1 Ammoscato, Vince (1990). "Part I. A study of the alkylation chemistry of N-sulfinyl amines. Part II. Attempted preparation of the camphor imine of stereospecifically deuterated glycine." (in en). University of Windsor. https://scholar.uwindsor.ca/etd/3002/. Retrieved 28 January 2018.