| 摘要 |
<p>Process for the preparation of polysulfide of formula (I) HS-(CH2)n-O-(CH2)m-O-(CH2)p-[S-S-CH2)n-O-(CH2)m-O-(CH2)p]q-SH (I) wherein m is an integer in the range 1 to 4, n and p are integers in the range 1-10, and q is an integer in the range 1-60, by oxidizing a bismercaptodiether compound of formula (II) HS-(CH2)n-O-(CH2)m-O-(CH2)p-SH (II) with elemental sulfur in the presence of a base and a protic solvent. This process has a high selectivity towards linear disulfides.</p> |
