"' 1, 3, 2, 4-Dithiadiphosphetane 2, 4-disulfides "'are a class of four-membered ring compounds which contain a P 2 S 2 ring, many of these compounds are able to act as sources of the dithiophosphine ylides.
12.
For example, one related United States patent application is US2014155385, which was filed July 11, 2012 and approved June 5th, 2014 for the use of 6-5 membered fused pyridine ring compounds ( including acalabrutnib and its structurally similar derivatives ) in the treatment of BTK mediated disorders.
13.
The presence of the bridge connecting the bridgehead atoms, which are most often two non-adjacent atoms, distinguishes bridged compounds from " fused ring compounds " that have two rings linked by two adjacent atoms, and from spiro compounds that have two rings linked by a single atom.
14.
It is unlikely that the ring compound ( P-N = C-S-C = N-) { or its isomer } would act as a plant protection agent, but ( FcP ( S ) ( NR 2 ) ( NCS ) ) compounds can act as nerve poisons in insects.
15.
Depending on the concentration of the dimethyl cyanamide in the reaction mixture either a different six membered ring compound ( P-N = C-S-C = N-) or a nonheterocylic compound ( FcP ( S ) ( NR 2 ) ( NCS ) ) is formed as the major product, the other compound is formed as a minor product.
16.
Depending on the concentration of the dimethyl cyanamide in the reaction mixture, either a different six-membered ring compound ( P-N = C-S-C = N-) or a nonheterocylic compound ( FcP ( S ) ( NR2 ) ( NCS ) ) is formed as the major product; the other compound is formed as a minor product.
17.
Although each period 2 element from lithium to nitrogen shows some similarities to the period 3 element in the next group from magnesium to sulfur ( known as the diagonal relationships ), their degree drops off quite abruptly past the boron silicon pair, so that the similarities of nitrogen to sulfur are mostly limited to sulfur nitride ring compounds when both elements are the only ones present.
18.
The one common atom connecting the participating rings distinguishes spiro compounds from other bicyclics : from " isolated ring compounds " like biphenyl that have no connecting atoms, from " fused ring compounds " like decalin having two rings linked by two adjacent atoms, and from " bridged ring compounds " like norbornane with two rings linked by two non-adjacent atoms.
19.
The one common atom connecting the participating rings distinguishes spiro compounds from other bicyclics : from " isolated ring compounds " like biphenyl that have no connecting atoms, from " fused ring compounds " like decalin having two rings linked by two adjacent atoms, and from " bridged ring compounds " like norbornane with two rings linked by two non-adjacent atoms.
20.
The one common atom connecting the participating rings distinguishes spiro compounds from other bicyclics : from " isolated ring compounds " like biphenyl that have no connecting atoms, from " fused ring compounds " like decalin having two rings linked by two adjacent atoms, and from " bridged ring compounds " like norbornane with two rings linked by two non-adjacent atoms.
