| 1. | They are of no immediate value of the utility of this heterocycle in synthesis .
对这个杂环化合物在合成上的应用都没有直接意义。 |
| 2. | Heterocycles have been passed over in large part by chemists confronted with synthetic problems .
杂环化合物常被许多从事合成研究的化学家所忽视。 |
| 3. | We have, therefore, in both of the examples above, heterocyclic compounds with "built-in" or latent functionality .
上述两例中的杂环化合物，都具有“固有的”或潜在的官能基。 |
| 4. | The chemical behaviour of heterocyclic compounds is governed by the same factors that govern all chemical behaviour .
杂环化合物的各种反应与其它化学反应一样，均为相同的因素所制约。 |
| 5. | Carbonylation reactions of heterocycles
杂环化合物的羰基化反应 |
| 6. | The influence of thiadiazole derivative on oil corrosion behavior
硫氮杂环化合物对油品腐蚀性能的影响 |
| 7. | It will melt in a certain range of melting points , but it has no definite melting point . soft pitch has no thermal effect when solidified
沥青组分极为复杂，大多数为三环以上的芳香族烃类，还有含氧、氮和硫等元素的杂环化合物和少量高分子炭素物质。 |
| 8. | Useful synthetic reactions of organoaluminacycles , such as reactions with a variety of electrophiles , alkylation reagents , and metal - mediated coupling reactions are presented
本文介绍近年来有机铝杂环化合物的合成方法学、反应化学及其在有机合成中的应用研究进展。 |
| 9. | Procedures for the preparation of isothiocyanates were synthesized in this paper . the applications of isothiocyanates in the heterocyclic synthesis and biotechnology were introduced
摘要本文综述了异硫氰酸酯的实验室制备方法，并介绍了其在杂环化合物合成及生物技术等方面的应用。 |
| 10. | Huang , x . , liu , z . - x . , “ solid - phase synthesis of 4 ( 1h ) ? quinolone and pyrimidine derivatives on a new scaffold - polymer - bound cyclic malonic acid ester ” , j . org . chem . , 2002 , 67 ( 19 ) , 6731 - 6737
国家自然科学基金面上重点项目： “丙二酸环酯聚合物试剂参与的杂环化合物固相合成” （ 2001 - 2003 ） 。 |
