本文介绍了用重氮转移法合成具有较大空间位阻的重氮乙酸二环己基甲酯、 L- 薄荷酯和叔丁酯。
Synthesis of sterically hindered dicyclohexylmethyl, L menthyl and tert butyl diazoacetate by diazo transfer was described on this paper.
研究了重氮烯氢向前手性烯烃单侧的非对映选择性转移。
Diastereoselective transfer of the diazene hydrogen to one face of the prochiral alkene was studied.
科学家认为重氮来自一颗彗星,而重氧则是来自行星形成的自然过程,这一过程把更轻的氧同位素留在了星云中,形成了太阳。
Scientists say the excess heavy nitrogen could have come from a comet. And the heavier oxygen from a natural process that left more of the light isotope in the part of the nebula that made the sun.
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