| 摘要 |
<p>Title cpds. of formula (I): (where R = double bond CHOH, double bond C(Me)CH2OH or double bond C(Et)CH2OH), are used as pharm. intermediates and monomers in the prepn. of thermostable polyformaldehydes and are prepd. by thermal condensation of Ph2CCl2 with the glycol R(CH2OH)2, at 100-250 degrees.</p> |
