A nitrogen-containing condensed heterocyclic derivative of the present invention, which is a compound represented by the formula:
wherein ring A represents benzene ring optionally having a further substituent, -L-represents -O-, -NR3a-, -S-, -SO-, -SO2-, -SO2NR3a-, -SO2NHCONR3a-, -SO2NHC(=NH)NR3a-, -C(=S)-,
or -CONR3a- (wherein R3a and R3b represent independently hydrogen atom, cyano group, hydroxy group, amino group, a C1-6 alkyl group or a C1-6 alkoxy group), n represents an integer of 0 to 6, R is hydrogen atom or a hydrocarbon group optionally having a substituent, and may be different in repetition of n, R1 represents a hydrocarbon group optionally having a substituent or a group represented by the formula:
(wherein R7 represents a hydrocarbon group optionally having a substituent), R2 represents hydrogen atom, an acyl group, a hydrocarbon group optionally having a substituent or a heterocyclic group optionally having a substituent, X represents a bond, O, S, SO, SO2 or NR4 (wherein R4 represents hydrogen atom, an acyl group or a hydrocarbon group optionally having a substituent), k and m represent independently an integer of 0 to 5, and 1
本发明的一种含氮缩合杂环衍生物,它是由式表示的化合物:
其中环 A 代表任选具有另一个取代基的苯环,-L-代表-O-,-NR3a-,-S-,-SO-,-SO2-,-SO2NR3a-,-SO2NHCONR3a-,-SO2NHC(=NH)NR3a-,-C(=S)-、
或 -CONR3a-(其中 R3a 和 R3b 分别独立地代表氢原子、氰基、羟基、氨基、C1-6 烷基或 C1-6 烷氧基),n 代表 0 至 6 的整数,R 是氢原子或任选具有取代基的烃基,在重复 n 时可以不同,R1 代表任选具有取代基的烃基或由式表示的基团:
(其中 R7 代表任选具有取代基的烃基),R2 代表氢原子、酰基、任选具有取代基的烃基或任选具有取代基的杂环基,X 代表键、O、S、SO、SO2 或 NR4(其中 R4 代表氢原子、其中 R4 代表氢原子、酰基或可选具有取代基的烃基),k 和 m 独立地代表 0 至 5 的整数,且 1
Intramolecular Reactivity of Arylcarbenes: Derivatives of o-Tolylcarbene
作者:Wolfgang Kirmse、Wolfgang Konrad、Dirk Schnitzler
DOI:10.1021/jo00093a014
日期:1994.7
Various CH(2)X groups have been attached to the ortho position of phenylcarbene. If 2'- or 3'-C-H bonds are present, as in 23 (X = Me), 71 (X = CMe(3)), and 58 (X = SiMe(3)), C-H insertion leading to five- or six-membered rings predominates in the gas phase and competes with intermolecular reactions in solution. The formation of benzocyclobutenes via insertion into 1'-C-H bonds is a very minor reaction path of 23 and 71. In contrast, 58 produces substantial amounts of the benzocyclobutene 59 by way of C-Si insertion, particularly in the gas phase. Insertion into the Si-Me bonds of 58 also occurs while the C-F bonds of 37 (X = CF3) and 50 (X = Fl are inert. In the gas phase, 37 and 50 give mainly benzocyclobutenes whereas intermolecular reactions prevail in solution. The effects of sensitization and of solvent polarity suggest that benzocyclobutenes arise from singlet arylcarbenes. The amount of carbene-carbene rearrangement decreases in the order 7 (X = H) > 37 (X = CF3) > 23 (X = Me); no rearrangement was observed with 50 (X = Fl, 58 (X = SiMe(3)), and 71 (X = CMe(3)).
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