ライフサイエンスコーパス: benzannulation

1 cceleration of the palladium catalyzed [4+2] benzannulation and sequential [2+2+2] trimerization reac

2 systematic changes in the regiochemistry of benzannulation and the ionizable moieties afford (iv) tu

3 The pinacol rearrangement, benzannulation, and oxy-Cope rearrangement are major pat

4 In addition, the presence of benzannulation appears to restrict bond length alternati

5 is complementary to the previously disclosed benzannulation approach involving Fischer carbene comple

6 A formal [3 + 2 + 1] cycloaddition (Dotz benzannulation) approach was utilized to simultaneously

7 A series of enyne-allenes, with and without benzannulation at the ene moiety and equipped with aroma

8 Benzannulation based on the reaction of cyclobutenones o

9 Benzannulation based on the reaction of cyclobutenones w

10 The first stage in the strategy involves a benzannulation based on the reaction of cyclobutenones w

11 during the course of a regioselective cross-benzannulation between bis(aryl ethynyl) ketone and enam

12 or the ring-closing step in the mechanism of benzannulation; (c) clarifies the mechanism of hydrogen

13 Employing diol and tetraol reactants, benzannulation can be conducted efficiently in one- and

14 ompounds are produced via a two-stage tandem benzannulation/cyclization strategy.

15 s which are constructed by the DBU-induced 6-benzannulation involving propargyl-allenyl isomerization

16 (oxidative addition) versus anionic (S(N)Ar) benzannulation, is reported.

17 A practical benzannulation method to prepare variously substituted a

18 An efficient and practical one-pot [4 + 2] benzannulation method to produce highly substituted indo

19 While benzannulation occurs in all three cases, the reactions

20 The benzannulation of a silane-substituted 1,3,8-triynes pro

21 of a dichlorobenzaldehyde in a Cu-catalyzed benzannulation of acetylenes provides functionalized dic

22 The [4 + 2] cross-benzannulation of conjugated enynes and diynes under cob

23 an intermolecular palladium-catalyzed cross-benzannulation of cyclic enynes and diynes.

24 ed enynes, which was found previously in the benzannulation of the acyclic substrates.

25 reordering of S1 and T2 state energies upon benzannulation of the parent structure.

26 The effects of substitution and double benzannulation on their photophysical properties were ex

27 tecting group, palladium- and gold-catalyzed benzannulations operated.

28 pool material, D-glucono-delta-lactone, Dotz benzannulation, oxa-Pictet-Spengler reaction, and H(2)SO

29 uch as 5m and 29m, and an ortho cycloadduct (benzannulation product), such as 29o.

30 rategy, triflate derivatives of the phenolic benzannulation products undergo Larock cyclization upon

31 ester-tethered 1,3,8-triynes provides novel benzannulation products with concomitant incorporation o

32 A new benzannulation protocol is described and applied to the

33 e through an intramolecular mode of the homo-benzannulation protocol, reported previously.

34 es a cascade of reactions that begins with a benzannulation reaction and is followed by the formation

35 If the benzannulation reaction is performed in conjunction with

36 re synthesized through a double or quadruple benzannulation reaction of alkynes promoted by Bronsted

37 The synthesis of 2 features the Dotz benzannulation reaction of chromium carbene 5 and alkyne

38 The benzannulation reaction of Fischer carbene complexes is

39 ives by the original Bronsted-acid-catalyzed benzannulation reaction of phenylacetaldehydes with alky

40 hylene chromium pentacarbonyl will undergo a benzannulation reaction with phenylacetylene, 1-pentyne,

41 also in the direct acceleration of the [4+2] benzannulation reaction.

42 ctivity of the hydrogen migration during the benzannulation reaction.

43 hosphine oxides 5 via the Pd-catalyzed [4+2]-benzannulation reaction.

44 the results obtained in palladium-catalyzed benzannulation reactions.

45 quent optimization of two previously unknown benzannulation reactions.

46 The initial benzannulation step proceeds via a pericyclic cascade me

47 namides serve as the reaction partner in the benzannulation step.

48 and soluble GNRs using a nonoxidative alkyne benzannulation strategy promoted by Bronsted acid.

49 in contrast to its E-counterpart, underwent benzannulation to produce the cyclophane 28 brought addi

50 gly, dialkynyl substrates can undergo tandem benzannulations to give substituted aza[5]helicenes in 8

51 In this work, benzannulation together with terminal cyano-substitution

52 ions of this catalytic system in the related benzannulation transformations of epoxide and acetal der

53 n of terminal alkynes and subsequent [4 + 2] benzannulation with diynes gives tetrasubstituted benzen