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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 27, Number 1
JKCSEZ 27(1)
February 20, 1983 

 
Title
Reactions of Triethylgermyldiphenylphosphine with Phenylisocyanate

Triethylgermyldiphenylphosphine과 Phenylisocyanate의 반응
Author
Sung Woo Park, Il Kyu Lee

박성우, 이일규
Keywords
Abstract
Triethylgermyldiphenylphosphine과 phenylisocyanate를 1:10 mole 비로 ampoule 속에서 혼합하여 여러 온도에서 반응시켰다. 그 결과 0℃에서는 phenylisocyanate의 고리화 2합체인 N, N-diphenyluretidine-2,4-dione만이, 20℃에서는 phenylisocyanate의 고리화 3합체인 triphenylisocyanurate가 함께 생성되었으며, 50℃에서는 위의 생성물 이외에 diphenylcarbodiimide가 생성되었다. 또한 100℃이상에서는 2합체는 생성되지 않고, diphenylcarbodiimide와 1,3,5-triphenyl-2,4,6-tris(phenylimino) hexahydro-1,3,5-triazine이 주로 생성되었다. 그리고 Triethylgermyldiphenylphosphine은 상기 고리 화합물들의 생성에 촉매로 작용하였다.

Triethylgermyldiphenylphosphine was reacted with phenylisocyanate at various temperatures for three days in sealed ampoules. At 0℃, only N, N-diphenyluretidine-2,4-dione, a cyclic dimer of phenylisocyanate (35%), was formed. But at 20℃, phenylisocyanutrate, a cyclic trimer of phenylisocyanate (30%), was formed along with the dimer. At 50℃, diphenylcarbodiimide (55%) was given together with the compounds described above. At the higher reaction temperatures than 100℃, instead of the dimer and trimer of phenylisocyanate, 1,3,5-triphenyl-2,4,6-tris(phenylimino) hexahydro-1,3,5-triazine, a cyclic trimer of diphenylcarbodiimide (30%) and diphenylcarbodiimide (70%) were mainly produced. Triethylgermyldiphenylphosphine appears to act as a catalyst for the formation of the above cyclic compounds.

Page
53 - 57
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