Corrigenda

This article refers to:

PMA-SiO2–Mediated MCR in PEG-400: A Greener aza-Friedel–Crafts Reaction Leading to 3-Arylmethyl/Diarylmethyl Indoles

Article title: “PMA-SiO2–Mediated MCR in PEG-400: A Greener Aza-Friedel–Crafts Reaction Leading to 3-Arylmethyl/Diarylmethyl Indoles”

Authors: Dinne Naresh Kumar Reddy, Kothapalli Bannoth Chandrasekhar, Yaddanapudi Sesha Siva Ganesh, Srikanth Sharathchandra Gorantla, Siddabathuni Ramanjaneyulu, K. Shiva Kumar, and Manojit Pal

Journal: Synthetic Communications

Bibliometrics: Volume 45, Number 4, 2015, pages 513–523

DOI: 10.1080/00397911.2014.966392

In the article “PMA-SiO2–Mediated MCR in PEG-400: A Greener Aza-Friedel–Crafts Reaction Leading to 3-Arylmethyl/Diarylmethyl Indoles,” which was published in Synthetic Communications, Volume 45, Number 4, 2015, pp. 513–523, the final version of the article was printed with some errors.

• On p. 513 in the Graphical Abstract, the reaction temperature should be corrected to “90–95 °C” instead of “110–115 °C.”

• On p. 515, in Scheme 1, the reaction temperature should be corrected to “90–95 °C” instead of “110–115 °C.”

• On p. 515, in line 4 of the Results and Discussion, the sentence reading “ … absence of any catalyst in PEG-400 at 120 °C … ” should be corrected to “ … absence of any catalyst in PEG-400 at 90–95 °C … ”

• On p. 517, Table 2, was printed with errors. The corrected version of Table 2 is presented here:

  Table 2. Synthesis of 3-arylmethyl/diarylmethyl indoles (4)^a

  

  Entry	Indole (1)	Aldehyde (2)	Dialkyl aniline (3)	Product (4)	Yield^b (%)
  1					65
  2	1a		3a		68
  3	1a	2b			63
  4	1a		3a		66
  5	1a		3a		62
  6	1a		3a		65
  7	1a		3a		65
  8	1a		3b		60
  9	1a		3a		63
  10	1a		3a		62
  11	1a	HCHO 2j	3a		70^c
  12		2a	3a		60
  13	1b	2f	3a		66
  14	1b	2c	3a		61
  15	1b	2j	3a		67^c
  16		2a	3a		60
  17	1c	2 g	3a		61
  18		2e	3b		67
  19	1d	2 h	3a		65
  20	1d	Me2CHCH2CHO 2k	3a		62^d

  ^aAll the reactions were carried out using indole 1 (1.0 equiv), aldehyde 2 (1.2 equiv), dialkyl aniline 3 (1.3 equiv), and PMA-SiO₂ (15 mol%) in PEG-400 at 90–95 °C.

  ^bIsolated yield.

  ^cThe reaction was carried out at 40–60 °C for 11 h.

  ^dThe reaction was carried out at 60–70 °C for 11 h.

The authors apologize for these errors and any inconvenience they may have caused readers of the journal.