ライフサイエンスコーパス: allylic position

1 deprotonation of 1 occurs exclusively at the allylic position.

2 isotopologues (D0-D14 DHA) at each internal allylic position.

3 exene species bearing a sulfonyl group at an allylic position.

4 cyclohexenes with the stereogenic centers at allylic positions.

5 positions with higher rate for internal bis-allylic positions.

6 er multiple bonds with a functional group in allylic position and some examples of successful transfo

7 isotopologue mixture is about 94% at the bis-allylic positions, and less than 1% remained as the prot

8 nes were regioselectively halogenated at the allylic position by means of a reaction with bromine.

9 uniformly and more rapidly than external bis-allylic positions (C6, C18).

10 arly from D1 to D9 in which all internal bis-allylic positions (C9, C12, C15) deuterate uniformly and

11 deuterated to completion at bis-allylic and allylic positions (D-DHA) by two-dimensional (2D) and hi

12 ity of 3-(4-methylphenyl)cyclopropene at the allylic position (delta H(o)acid = 398.6 +/- 1.4 kcal/mo

13 , D10-DHA or D11-DHA) deuterated >95% at bis-allylic positions, except for D-LnA.

14 fication of D fraction at each bis- and mono-allylic position for each isotopologue.

15 tuent (carbonyl or arene) is required at the allylic position for high levels of diastereoselection t

16 ning a new C-N, C-O, C-S, or C-C bond at the allylic position in good yield with a high branched-to-l

17 Deuteration of the allylic positions in cholesterol suppresses autoxidation

18 Percent D of bis-allylic positions increases linearly from D1 to D9 in wh

19 lyunsaturated fatty acids (PUFAs) at the bis-allylic position; indeed, pretreating cells with PUFAs c

20 rates to a much greater extent than the mono-allylic position near the carboxyl end, and both positio

21 has been deuterated to >90%, while the mono-allylic position near the carboxyl position, C3, deutera

22 The mono-allylic position near the methyl end deuterates to a muc

23 The mono-allylic positions near the methyl end (C21) show a steep

24 wide range of nitrogen functionality at the allylic position of alkenes with unique regioselectivity

25 racterized the extent of deuteration at each allylic position of docosa-4,7,10,13,16,19-hexaenoic aci

26 ential replacement of three C-H bonds at the allylic position of propylene and other simple terminal

27 n is alleviation of steric congestion at the allylic position of the alpha-silyloxy allylic silane an

28 n at a terminal olefinic position and at the allylic position of the diene.

29 H/D exchange is achieved at allylic positions of alkenes using D(2)O in acetone and

30 amount of O(2) trapping at the central (bis-allylic) position of the pentadienyl radical also increa

31 ts of the SN2' reaction; i.e., attack at the allylic position remote from the leaving group with migr

32 , 95-100, 81-100, and 83-100% D at their bis-allylic positions, respectively.

33 , with methyl and phenyl substituents at the allylic position shown to provide exquisite stereocontro

34 ic product ions arising from dissociation at allylic positions that enable assignment of position(s)

35 lective installation of benzyl groups at the allylic position to forge tertiary and quaternary carbon

36 (-)-(4S)-Limonene is hydroxylated at the C6 allylic position to give (-)-trans-carveol as the only p

37 s a lithium oxyanionic group in the proximal allylic position to the alkene greatly accelerates the c

38 ramolecular hydrogen transfer (HAT) from the allylic position to the carbene radical, followed by a n

39 n liquid ammonia, MCPs bearing a C-O bond at allylic position undergo both a reductive cleavage of th

40 products carry (2)H (D) mainly at their bis-allylic positions, where they are resistant to autoxidat

41 - and 1,7-enynes substituted in the terminal allylic position with a tert-butyldimethylsilyl ether gr

42 Reinforcing the ROS-labile bis-allylic positions with deuterium (D-DHA) protects agains

43 n kinetics follow an increasing curve at bis-allylic positions with higher rate for internal bis-ally