The changes accompanying the transition from the gregarious to the solitary phase state in locusts are so drastic that f......

Chemical communication plays an important role in density-dependent phase change in locusts.However,the volatile compone......

本文扼要介绍了相转移催化剂的特点;分析了二甲胺在苯乙腈生产中的催化作用原理,及其它可能选用的一些相转移催化剂在实际应用时存......

运用精细^1HNMR,^13CNMR、gHSQC、gCOSY、NOESY1D、ATP等核磁技术以及FTIR、HRMS对1-甲基-4-氰基-4-苯基-哌啶盐酸盐的结构进行了......